Who may participate in the Exchange Offer?

Any DuPont stockholders in the United States during the Exchange Offer period may participate in the Exchange Offer. Although DuPont has mailed this document to its stockholders to the extent required by U.S. law, including stockholders located outside the United States, this document is not an offer to buy, sell or exchange and it is not a solicitation of an offer to buy, sell or exchange any shares of DuPont common stock, shares of IFF common stock or shares of N&B common stock in any jurisdiction in which such offer, sale or exchange is not permitted.

How many shares of N&B common stock will I receive for each share of DuPont common stock that I tender?

The Exchange Offer is designed to permit you to exchange your shares of DuPont common stock for shares of N&B common stock at a price per share equal to a    % discount to the per-share value of IFF common stock, calculated as set forth in this prospectus. Stated another way, for each $100 of your DuPont common stock accepted in the Exchange Offer, you will receive approximately $    of N&B common stock. The value of the DuPont common stock will be based on the calculated per-share value for the DuPont common stock on the NYSE and the value of the N&B common stock will be based on the calculated per-share value for IFF common stock on the NYSE, in each case determined by reference to the simple arithmetic average of the daily VWAP of DuPont common stock and IFF common stock on the NYSE on each of the Valuation Dates. The last day on which tenders will be accepted, whether on                    , 2021 or any later date to

The number of shares you can receive is subject to an upper limit of            shares of N&B common stock for each share of DuPont common stock accepted in the Exchange Offer. The next question and answer below describes how this limit may impact the value you receive.

The Exchange Offer does not provide for a minimum exchange ratio. See “The Exchange Offer—Terms of the Exchange Offer.”

Only a portion of the shares of N&B common stock are being offered in the Exchange Offer, with the remaining            shares of N&B common stock to be distributed in a dividend to all stockholders of DuPont pro rata in the Spin-Off. In addition, if an insufficient number of shares of DuPont common stock have been tendered such that fewer than all shares of N&B common stock offered by DuPont in the Exchange Offer are exchanged (including due to the upper limit being reached), then such remaining shares of N&B common stock will be included in the Spin-Off.

Because the Exchange Offer is subject to proration in the event of oversubscription, DuPont may accept for exchange only a portion of the DuPont common stock tendered by you. Any proration of the number of shares accepted in the Exchange Offer will be determined on the basis of the proration mechanics described under “The Exchange Offer—Terms of the Exchange Offer—Proration; Tenders for Exchange by Holders of Fewer than 100 Shares of DuPont Common Stock.”

Is there a limit on the number of shares of N&B common stock I can receive for each share of DuPont common stock that I tender?

The number of shares you can receive is subject to an upper limit of            shares of N&B common stock for each share of DuPont common stock accepted in the Exchange Offer. If the upper limit is in effect, you will receive less than $            of N&B common stock for each $100 of DuPont common stock that you tender, and you could receive much less. For example, if the calculated per-share value of DuPont common stock was $             (        % above the highest closing price for DuPont common stock on the NYSE during the three-month period prior to commencement of the Exchange Offer) and the calculated per-share value of N&B common stock was $    (the lowest closing price for IFF common stock on the NYSE during that three-month period), the value of N&B common stock, based on the IFF common stock price, received for shares of DuPont common stock accepted for exchange would be approximately $            for each $100 of DuPont common stock accepted for exchange.

Are there possible adverse effects on the value of IFF common stock ultimately to be received by DuPont stockholders who participate in the Exchange Offer?

The factors associated with the Transactions are described in more detail in the section of this document entitled “Risk Factors.” You should carefully consider the risk factors set forth in that section.

How and when will I know the final exchange ratio and whether the upper limit is in effect?

DuPont will announce the final exchange ratio used to determine the number of shares that can be received for each share of DuPont common stock accepted in the Exchange Offer by press release, and it will be available on the website                 , in each case by 11:59 p.m., New York City time, at the end of the second trading day (currently expected to be                    , 2021) immediately preceding the expiration date of the Exchange Offer (currently expected to be                    , 2021), unless the Exchange Offer is extended or terminated. At such time, the final exchange ratio will also be available from the information agent at the toll-free number provided on the back cover of this document. DuPont will also announce at that time whether the upper limit on the number of shares that can be received for each share of DuPont common stock tendered will be in effect. Therefore, the timing of such announcement will provide each holder of DuPont common stock with two full business days after knowing the final exchange ratio and whether the upper limit is in effect during which to decide whether to tender or withdraw their shares in the Exchange Offer.

How are the calculated per-share values of DuPont common stock and IFF common stock determined for purposes of calculating the number of shares of N&B common stock to be received in the Exchange Offer?

The calculated per-share value of DuPont common stock and IFF common stock for purposes of the Exchange Offer will equal the simple arithmetic average of the daily VWAP of DuPont common stock and IFF common stock, as the case may be, on the NYSE on each of the Valuation Dates. The daily VWAP will be as reported by Bloomberg L.P. as displayed under the heading Bloomberg VWAP on the Bloomberg pages “                ” with respect to DuPont common stock and “                ” with respect to N&B common stock (or any other recognized quotation source selected by DuPont in its sole discretion if such pages are not available or are manifestly erroneous). The daily VWAPs of DuPont common stock and IFF common stock obtained from Bloomberg L.P. may be different from other sources of volume-weighted average prices or investors’ or other security holders’ own calculations. DuPont will determine the simple arithmetic average of the VWAPs of each stock based on prices provided by Bloomberg L.P., and such determination will be final. For more information on the terms of the Exchange Offer, see “The Exchange Offer—Terms of the Exchange Offer.”

What is the “daily volume-weighted average price” or “daily VWAP?”

The “daily volume-weighted average price” for DuPont common stock and IFF common stock will be the volume-weighted average price of DuPont common stock and IFF common stock on the NYSE during the period beginning at 9:30 a.m., New York City time (or such other time as is the official open of trading on the NYSE), and ending at 4:00 p.m., New York City time (or such other time as is the official close of trading on the NYSE) except that such data will only take into account adjustments made to reported trades included by 4:10 p.m., New York City time, as reported to DuPont by Bloomberg L.P. for the equity ticker pages of DuPont, in the case of DuPont common stock, and IFF, in the case of IFF common stock. The daily VWAPs obtained from Bloomberg L.P. may be different from other sources of volume-weighted average prices or investors’ or other security holders’ own calculations. DuPont will determine the simple arithmetic average of the VWAPs of each stock based on prices provided by Bloomberg L.P., and such determination will be final.

Where can I find the daily VWAP of DuPont common stock and IFF common stock during the Exchange Offer period?

DuPont will maintain a website at                 that provides the daily VWAP of both DuPont common stock and IFF common stock, together with indicative exchange ratios, which will be made available commencing at the end of the third trading day of the Exchange Offer and until the first Valuation Date. On the first two Valuation Dates, when the values of DuPont common stock and IFF common stock are calculated for the purposes of the Exchange Offer, the website will show the indicative exchange ratios based on indicative calculated per-share values calculated by DuPont, which will equal: (i) on the first Valuation Date, the daily VWAP of DuPont common stock and the IFF common stock for that day; and (ii) on the second Valuation Date, the simple arithmetic average of the daily VWAPs of DuPont common stock and IFF common stock for the first and second Valuation Dates. The website will not provide an indicative exchange ratio on the third Valuation Date. The final exchange ratio (as well as whether the upper limit on the number of shares that can be received for each share of DuPont common stock tendered will be in effect) will be announced by press release and be available on the website, in each case by 11:59 p.m., New York City time, at the end of the second trading day (currently expected to be                , 2021) immediately preceding the expiration date of the Exchange Offer (currently expected to be                , 2021). DuPont will determine the simple arithmetic average of the VWAPs based on data provided by Bloomberg L.P., and such determinations will be final.

Why is the calculated per-share value for N&B common stock based on the trading prices for IFF common stock?

There is currently no trading market for N&B common stock. DuPont believes, however, that the trading prices for IFF common stock are an appropriate proxy for the trading prices of N&B common stock because (i) in the Merger, each outstanding share of N&B common stock (except for shares of N&B common stock held by N&B as treasury stock or by DuPont, which will be canceled and cease to exist and no consideration will be delivered in exchange therefor) will be automatically converted into the right to receive a number of shares of IFF common stock such that immediately after the Merger such DuPont stockholders will collectively own approximately 55.4% of IFF common stock on a fully diluted basis, and IFF shareholders will collectively own approximately 44.6% of IFF common stock on a fully diluted basis, in each case excluding any overlaps in the pre-transaction stockholder bases (calculated as further described in “The Merger Agreement – Merger Consideration”), (ii) prior to the consummation of the Exchange Offer, N&B will issue to DuPont a number of shares of N&B common stock equal to the number of shares of IFF common stock to be issued in the Share Issuance such that the total number of shares of N&B common stock outstanding immediately prior to the Distribution will be that number that results in the exchange ratio in the Merger equaling approximately one and, as a result, each share of N&B common stock (except for shares of N&B common stock held by N&B as treasury stock or by DuPont, which will be canceled and cease to exist and no consideration will be delivered in exchange therefor) will be converted into approximately one share of IFF common stock in the Merger, and (iii) at the Valuation Dates, it is expected that all the major conditions to the consummation of the Merger will have been satisfied or, if permitted by the Merger Agreement, waived (except for those conditions that by their nature are satisfied at the closing of the Merger), and the Merger will be expected to be consummated shortly, such that investors should be expected to be valuing IFF common stock based on the expected value of such IFF common stock immediately after the Merger. There can be no assurance, however, that IFF common stock after the Merger will trade on the same basis as IFF common stock trades prior to the Merger. See “Risk Factors—Risks Related to the Exchange Offer—The trading prices of IFF common stock may not be an appropriate proxy for the prices of N&B common stock.”

How and when will I know the final exchange ratio?

DuPont will announce the final exchange ratio used to determine the number of shares that can be received for each share of DuPont common stock accepted in the Exchange Offer by press release, and it will be

Will indicative exchange ratios be provided during the Exchange Offer period?

Yes. Prior to the Valuation Dates and commencing at the end of the third trading day of the Exchange Offer, indicative exchange ratios will be available by contacting the information agent at the toll-free number provided on the back cover of this prospectus and at                , calculated as though that day were the last of the three Valuation Dates for the Exchange Offer. The indicative exchange ratio will also reflect whether the upper limit on the exchange ratio, described above, would have been in effect. In other words, assuming that a given day is a trading day, the indicative exchange ratio will be calculated based on the simple arithmetic average of the daily VWAPs of DuPont common stock and IFF common stock for that day and the two immediately preceding trading days. On the first two Valuation Dates, when the values of DuPont common stock and IFF common stock are calculated for the purposes of the Exchange Offer, the website will show the indicative exchange ratios based on indicative calculated per-share values calculated by DuPont, which will equal: (i) on the first Valuation Date, the daily VWAP of DuPont common stock and the IFF common stock for that day; and (ii) on the second Valuation Date, the simple arithmetic mean of the daily VWAPs of DuPont common stock and IFF common stock for the first and second Valuation Dates. The website will not provide an indicative exchange ratio on the third Valuation Date. The final exchange ratio (as well as whether the upper limit on the number of shares that can be received for each share of DuPont common stock tendered will be in effect) will be announced by press release and be available on the website, in each case by 11:59 p.m., New York City time, at the end of the second trading day (currently expected to be                    , 2021) immediately preceding the expiration date of the Exchange Offer (currently expected to be                    , 2021).

What if DuPont common stock or IFF common stock does not trade on any of the Valuation Dates?

If a market disruption event, as defined below, occurs with respect to DuPont common stock or IFF common stock on any of the Valuation Dates, the calculated per-share value of DuPont common stock and per-share value of N&B common stock will be determined using the daily VWAP of shares of DuPont common stock and shares of IFF common stock on the preceding full trading day or days, as the case may be, on which no market disruption event occurred with respect to either DuPont common stock and IFF common stock. If, however, a market disruption event occurs as specified above, DuPont may terminate or extend the Exchange Offer if, in its reasonable judgment, the market disruption event has impaired the benefits of the Exchange Offer to DuPont. If DuPont decides to extend the Exchange Offer period following a market disruption event, the Valuation Dates will be reset, as with any extension of the Exchange Offer, to the period of three consecutive trading days ending on and including the second trading day preceding the expiration date, as may be extended. Therefore, the timing of such announcement will provide each holder

Are there circumstances under which I would receive fewer shares of N&B common stock than I would have received if the exchange ratio were determined using the closing prices of DuPont common stock and IFF common stock on the expiration date of the Exchange Offer?

Yes. The exchange ratio is calculated based on an average of the daily VWAP of shares of DuPont common stock and shares of IFF common stock on the Valuation Dates and not using the closing prices of DuPont common stock and IFF common stock on the expiration date of the Exchange Offer, such that you could receive fewer shares of N&B common stock than you would have received if the exchange ratio were determined using the closing prices of DuPont common stock and IFF common stock on the expiration date of the Exchange Offer. For example, if the trading price of DuPont common stock were to increase during the last two full trading days of the Exchange Offer, the average DuPont stock price used to calculate the exchange ratio would likely be lower than the closing price of shares of DuPont common stock on the expiration date of the Exchange Offer. As a result, you would receive fewer shares of N&B common stock, and therefore effectively fewer shares of IFF common stock, for each $100 of shares of DuPont common stock than you would have if the average DuPont stock price were calculated on the basis of the closing price of shares of DuPont common stock on the expiration date of the Exchange Offer or on the basis of an averaging period that includes the last two full trading days prior to the expiration of the Exchange Offer period. Similarly, if the trading price of IFF common stock were to decrease during the last two full trading days prior to the expiration of the Exchange Offer period, the average IFF stock price used to calculate the exchange ratio would likely be higher than the closing price of IFF common stock on the last full trading day prior to the expiration date. This could also result in your receiving fewer shares of N&B common stock, and therefore effectively fewer shares of IFF common stock, for each $100 of DuPont common stock than you would otherwise receive if the average IFF common stock price were calculated on the basis of the closing price of IFF common stock on the last full trading day prior to the expiration date or on the basis of an averaging period that included the last two full trading days prior to the expiration of the Exchange Offer period. See “The Exchange Offer—Terms of the Exchange Offer.”

Will fractional shares of IFF common stock be distributed?

No fractional shares will be issued in the Merger, as described in this document. The Exchange Offer Agent will hold shares of N&B common stock in trust for the holders of DuPont common stock who validly tendered their shares in the Exchange Offer or are entitled to receive shares in the Spin-Off. Immediately following the consummation of the Exchange Offer and the Spin-Off, and by means of the Merger, each outstanding share of N&B common stock will be converted into the right to receive an equal number of shares of IFF common stock (because, prior to the consummation of the Exchange Offer, N&B will authorize the issuance of a number of shares of N&B common stock such that the total number of shares of N&B common stock outstanding immediately prior to the Distribution will be that number that results in the exchange ratio in the Merger equaling one). In the Merger, no fractional shares of IFF common stock will be delivered to holders of N&B common stock. All fractional shares of IFF common stock that a holder of shares of N&B common stock would otherwise be entitled to receive as a result of the Merger will be aggregated by the Exchange Agent. The Exchange Agent will cause the whole shares obtained thereby to be sold on behalf of such holders of shares of N&B common stock that would otherwise be entitled to receive such fractional shares of IFF common stock pursuant to the Merger, in the open market. The Exchange Agent will make available the net proceeds thereof, after deducting any required withholding taxes and brokerage charges, commissions and conveyance and similar taxes, on a pro rata basis, without interest, as soon as practicable to the holders of N&B common stock that would otherwise be entitled to receive such fractional shares of IFF common stock in the Merger. See “The Exchange Offer—Terms of the Exchange Offer.”

What is the aggregate number of shares of N&B common stock being offered in the Exchange Offer?

In the Exchange Offer, DuPont is offering to exchange        shares of N&B common stock held by it, which represents approximately        % of the outstanding shares of N&B common stock. Each share of N&B common stock will, pursuant to the Merger, be automatically converted into a right to receive an equal number of shares of IFF common stock, as described above, and N&B will authorize the issuance of a number of shares of N&B common stock to result in that exchange ratio. The remaining shares of N&B common stock that are not being offered in the Exchange Offer will be distributed pro-rata to DuPont stockholders in the Spin-Off (along with any shares of N&B common stock not subscribed for in the Exchange Offer). See “The Exchange Offer—Terms of the Exchange Offer.”

What happens if not enough shares of DuPont common stock are tendered to allow DuPont to exchange all of the shares of N&B common stock being offered in the Exchange Offer?

If the Exchange Offer is consummated but less than all of the shares of N&B common stock being offered in the Exchange Offer are exchanged because the Exchange Offer is not fully subscribed, the additional shares of N&B common stock owned by DuPont will be distributed on a pro rata basis to the holders of shares of DuPont common stock whose shares of DuPont common stock remain outstanding after the consummation of the Exchange Offer along with the remaining shares of N&B common stock that are not being offered in the Exchange Offer. The record date for the Spin-Off will be announced by DuPont. Any DuPont stockholder who validly tenders (and does not properly withdraw) shares of DuPont common stock for shares of N&B common stock and whose shares are accepted in the Exchange Offer will waive their rights with respect to such shares to receive, and forfeit any rights to, shares of N&B common stock distributed on a pro rata basis to DuPont stockholders in the Spin-Off (both for the portion of N&B common stock DuPont has elected to distribute in the Spin-Off and in the event additional shares of N&B common stock are distributed because the Exchange Offer is not fully subscribed). See “The Exchange Offer—Distribution of N&B Common Stock Remaining After the Exchange Offer.”

What happens if DuPont declares a quarterly dividend during the Exchange Offer?

If DuPont declares a quarterly dividend and the record date for that dividend occurs during the Exchange Offer period, you will be eligible to receive that dividend if you continue to own your shares of DuPont common stock as of that record date.

Will tendering my shares affect my ability to receive the DuPont quarterly dividend?

No. If a dividend is declared by DuPont with a record date before the completion of the Exchange Offer, you will be entitled to that dividend even if you tendered your shares of DuPont common stock. Tendering your shares of DuPont common stock in the Exchange Offer is not a sale or transfer of those shares until they are accepted for exchange upon completion of the Exchange Offer. In addition, the Spin-Off will not affect your ability to receive any DuPont quarterly dividend, only a decision by you to sell or transfer your shares prior to the record date for any quarterly dividend will affect your entitlement to it.

Will all shares of DuPont common stock that I tender be accepted in the Exchange Offer?

Not necessarily. Depending on the number of shares of DuPont common stock validly tendered in the Exchange Offer and not properly withdrawn, the calculated per-share value of DuPont common stock and the per-share value of N&B common stock determined as described above, DuPont may have to limit the number of shares of DuPont common stock that it accepts in the Exchange Offer through a proration process. Any proration of the number of shares accepted in the Exchange Offer will be determined on the basis of the proration mechanics described under “The Exchange Offer—Terms of the Exchange Offer—Proration; Tenders for Exchange by Holders of Fewer than 100 Shares of DuPont Common Stock.”

Will I be able to sell my shares of N&B common stock after the Exchange Offer is completed?

No. There currently is no trading market for N&B common stock and no such trading market will be established in the future. The Exchange Offer Agent will hold all issued and outstanding shares of N&B common stock in trust until the shares of N&B common stock are converted into the right to receive shares of IFF common stock in the Merger. Participants in the Exchange Offer will not receive such shares of N&B common stock, but will receive the shares of IFF common stock issuable in the Merger, which can be sold in accordance with applicable securities laws. See “The Exchange Offer—Distribution of N&B Common Stock Remaining After the Exchange Offer.”

How many shares of DuPont common stock will DuPont accept if the Exchange Offer is completed?

The number of shares of DuPont common stock that will be accepted if the Exchange Offer is completed will depend on the final exchange ratio, the number of shares of N&B common stock offered and the number of shares of DuPont common stock tendered. DuPont will offer                 shares of N&B common stock in the Exchange Offer. The maximum number of shares of DuPont common stock that will be accepted if the Exchange Offer is completed will be equal to the number of shares of N&B common stock offered by DuPont (i.e.,                ) divided by the final exchange ratio (which will be subject to the upper limit). For example, assuming that the final exchange ratio is                (the upper limit for shares of N&B common stock that could be exchanged for one share of DuPont common stock), then DuPont would accept up to                shares of DuPont common stock.

Are there any conditions to DuPont’s obligation to complete the Exchange Offer?

Yes. The Exchange Offer is subject to various conditions listed under “The Exchange Offer—Conditions to Consummation of the Exchange Offer.” If any of these conditions are not satisfied or waived prior to the expiration of the Exchange Offer, DuPont will not be required to accept shares for exchange and may extend or terminate the Exchange Offer.

When does the Exchange Offer expire?

The period during which you are permitted to tender your shares of DuPont common stock in the Exchange Offer will expire at 11:59 p.m., New York City time, on                , 2021, unless DuPont extends the Exchange Offer (subject to certain limitations on DuPont’s ability to extend). See “The Exchange Offer—Terms of the Exchange Offer—Extension; Termination; Amendment.”

Can the Exchange Offer be extended and under what circumstances?

Yes. DuPont can, subject to the terms and conditions of the Separation Agreement, extend the Exchange Offer, in its sole discretion, at any time and from time to time. For instance, the Exchange Offer may be extended if any of the conditions for consummation of the Exchange Offer listed under “The Exchange Offer—Conditions to Consummation of the Exchange Offer” are not satisfied or waived prior to the expiration of the Exchange Offer. In case of an extension of the Exchange Offer, DuPont will publicly announce the extension at                 and separately by press release no later than 9:00 a.m., New York City time, on the next business day following the previously scheduled expiration date. If the Exchange Offer is extended, the Valuation Dates will reset to the period of three consecutive trading days ending on and including the second trading day preceding the revised expiration date, as may be extended.

How do I participate in the Exchange Offer?

The procedures you must follow to participate in the Exchange Offer will depend on whether you hold your shares of DuPont common stock through a bank or trust company or broker, as a participant in the RSP, or if your shares of DuPont common stock are registered in your name in DuPont’s direct register of shares (the “DRS”). For specific instructions about how to participate, see “The Exchange Offer—Terms of the Exchange Offer—Procedures for Tendering.”

What if I participate in the RSP?

If you participate in the RSP, you can elect to either keep your shares of DuPont common stock or exchange some or all of your shares of DuPont common stock for shares of N&B common stock in the Exchange Offer. You will receive instructions from Bank of America, N.A., the trustee of the RSP, via letter or email informing you how to make an election and the deadline for making an election. If you do not make an active election prior to the applicable deadline, none of the shares of DuPont common stock attributable to your account under the RSP will be exchanged for shares of N&B common stock in the Exchange Offer.

How do I tender my shares of DuPont common stock after the final exchange ratio has been determined?

DuPont will announce the final exchange ratio used to determine the number of shares of N&B common stock that can be received for each share of DuPont common stock accepted in the Exchange Offer by press release and it will be available on the website                , in each case by 11:59 p.m., New York City time, at the end of the second trading day (currently expected to be                , 2021) immediately preceding the expiration date of the Exchange Offer (currently expected to be                , 2021), unless the Exchange Offer is extended or terminated. The timing of such announcement will therefore provide each holder of DuPont common stock with two full business days after knowing the final exchange ratio during which to decide whether to tender or withdraw their shares in the Exchange Offer. If you wish to tender shares of DuPont common stock pursuant to the Exchange Offer but (i) the procedure for book-entry transfer cannot be completed on a timely basis or (ii) time will not permit all required documents to reach the Exchange Offer Agent on or before the expiration date of the Exchange Offer, you may still tender your shares of DuPont common stock by complying with the guaranteed delivery procedures described in the section entitled “The Exchange Offer—Terms of the Exchange Offer—Procedures for Tendering—Guaranteed Delivery Procedures.” If you hold shares of DuPont common stock through a broker, dealer, commercial bank, trust company or similar institution, that institution must tender your shares on your behalf.

Can I tender only a portion of my shares of DuPont common stock in the Exchange Offer?

Yes. You may tender all, some or none of your shares of DuPont common stock.

What do I do if I want to retain all of my shares of DuPont common stock?

If you want to retain all of your shares of DuPont common stock, you do not need to take any action.

Can I change my mind after I tender my shares of DuPont common stock and before the Exchange Offer expires?

Yes. You may withdraw your tendered shares at any time before the Exchange Offer expires. See “The Exchange Offer—Terms of the Exchange Offer—Withdrawal Rights.” If you change your mind again, you can re-tender your shares of DuPont common stock by following the tender procedures again prior to the expiration of the Exchange Offer.

Will I be able to withdraw the shares of DuPont common stock I tender after the final exchange ratio has been determined?

Yes. The final exchange ratio used to determine the number of shares of N&B common stock that you will receive for each share of DuPont common stock accepted in the Exchange Offer will be announced by press release and be available on the website                , in each case by 11:59 p.m., New York City time, at the end of the second trading day (currently expected to be                    , 2021) immediately preceding the expiration date of the Exchange Offer (currently expected to be                    , 2021), unless the Exchange Offer is extended or terminated. DuPont will also announce at that time whether the upper limit on the number of shares of N&B common stock that can be received for each share of DuPont common stock tendered is in effect. The timing of such announcement will therefore provide each holder of DuPont common stock with two full business days after knowing the final exchange ratio and whether the upper limit is in effect during which to decide whether to tender or withdraw their shares in the Exchange Offer. Subject to any extension or termination, you have the right to withdraw shares of DuPont common stock you have tendered at any time before 11:59 p.m., New York City time, on the expiration date, which is                , 2021. In addition, shares of DuPont common stock tendered pursuant to the Exchange Offer may be withdrawn after                , 2020 (i.e., after the expiration of 40 business days from the commencement of the Exchange Offer), if DuPont does not accept your shares of DuPont common stock pursuant to the exchange offer by such date. See “The Exchange Offer—Terms of the Exchange Offer.”

How do I withdraw my tendered DuPont common stock after the final exchange ratio has been determined?

If you are a registered stockholder of DuPont common stock holding shares through the DRS and you wish to withdraw your shares after the final exchange ratio has been determined, then you must deliver a written notice of withdrawal or an e-mail transmission notice of withdrawal to the Exchange Offer Agent prior to 11:59 p.m., New York City time, on the expiration date. In addition, shares of DuPont common stock tendered pursuant to the Exchange Offer may be withdrawn after                , 2020 (i.e., after the expiration of 40 business days from the commencement of the Exchange Offer), if DuPont does not accept your shares of DuPont common stock pursuant to the Exchange Offer by such date. The information that must be included in that notice is specified under “The Exchange Offer—Terms of the Exchange Offer—Withdrawal Rights.”

Are there any material differences between the rights of holders of DuPont common stock and IFF common stock?

Yes. IFF is a New York corporation and DuPont is a Delaware corporation, and each is subject to different organizational documents. Holders of DuPont common stock, whose rights are currently governed by DuPont’s organizational documents and Delaware law, will, with respect to the shares validly tendered and exchanged immediately following the Exchange Offer (and with respect to those shares they receive in the Spin-Off, which are received by stockholders without the exchange of any of their shares in the Exchange Offer), become shareholders of IFF and their rights will be governed by IFF’s organizational documents and New York law. The material differences between the rights associated with DuPont common stock and IFF common stock that may affect holders of DuPont common stock whose shares are accepted for exchange for shares of N&B common stock in the Exchange Offer (or who receive shares of N&B common stock in the Spin-Off) and who will obtain shares of IFF common stock in the Merger, relate to, among other things, advance notice procedures for shareholder proposals or director nominations and whether certain actions and proceedings are subject to an exclusive forum. For a further discussion of the material differences between the rights of holders of DuPont common stock and IFF common stock, see the section entitled “Comparison of Rights of Holders of DuPont Common Stock and IFF Common Stock.”

Are there any appraisal rights for holders of shares of DuPont common stock?

There are no appraisal rights available to holders of shares of DuPont common stock in connection with the Exchange Offer.

What will DuPont do with the shares of DuPont common stock that are tendered, and what is the impact of the Exchange Offer on DuPont’s share count?

The shares of DuPont common stock that are tendered in the Exchange Offer will be held as treasury stock by DuPont unless and until retired or used for other purposes. Any shares of DuPont common stock acquired by DuPont in the Exchange Offer will reduce the total number of shares of DuPont common stock outstanding, although DuPont’s actual number of shares outstanding on a given date reflects a variety of factors such as option exercises and release of shares upon vesting restricted stock units.

What will happen to the remaining shares of N&B common stock owned by DuPont in the Spin-Off following the consummation of the Exchange Offer?

In the Exchange Offer, DuPont is offering to exchange            shares of N&B common stock held by it, which represents approximately                % of the outstanding shares of N&B common stock. The shares of N&B common stock not being offered in the Exchange Offer, as well as any remaining shares of N&B common stock if the Exchange Offer is not fully subscribed, will be distributed on a pro rata basis to DuPont stockholders whose shares of DuPont common stock remain outstanding following the

If I tender some or all of my shares of DuPont common stock in the Exchange Offer, will I receive any shares of N&B common stock in the Spin-Off?

DuPont stockholders who validly tender (and do not properly withdraw) shares of DuPont common stock for shares of N&B common stock and whose shares are accepted in the Exchange Offer will waive their rights (but solely with respect to such shares) to receive, and forfeit any rights to, shares of N&B common stock distributed on a pro rata basis to DuPont stockholders in the Spin-Off (whether of the shares of N&B common stock not being offered in the Exchange Offer or in the event the Exchange Offer is not fully subscribed). However, in the event any tendered shares are not accepted in the Exchange Offer for any reason, or you do not tender all of your shares of DuPont common stock, such shares will be entitled to receive shares of N&B common stock in the Spin-Off.

If I do not tender any of my shares of DuPont common stock in the Exchange Offer, will I receive any shares of N&B common stock in the Spin-Off?

Yes. In the Exchange Offer, DuPont is offering to exchange                 shares of N&B common stock held by it, which represents approximately                % of the outstanding shares of N&B. The shares of N&B common stock not being offered in the Exchange Offer, as well as any remaining shares of N&B common stock if the Exchange Offer is not fully subscribed, will be distributed on a pro rata basis to DuPont stockholders whose shares of DuPont common stock remain outstanding following the consummation of the Exchange Offer. DuPont stockholders who validly tender (and do not properly withdraw) shares of DuPont common stock for shares of N&B common stock and whose shares are accepted in the Exchange Offer will waive their rights (but solely with respect to such shares) to receive, and forfeit any rights to, shares of N&B common stock distributed on a pro rata basis to DuPont stockholders in the Spin-Off (whether of the shares of N&B common stock not being offered in the Exchange Offer or in the event the Exchange Offer is not fully subscribed).

If I do not tender any of my shares of DuPont common stock in the Exchange Offer, but I want to receive shares of N&B common stock in the Spin-Off, am I required to do anything?

No. DuPont stockholders are not required to take any action in connection with the Spin-Off or Merger, and no action by DuPont stockholders is required to participate in these transactions and to receive the                 shares of N&B common stock (along with any shares distributed if the Exchange Offer is undersubscribed) that will be distributed on a pro rata basis in the Spin-Off and automatically converted in the Merger into the right to receive shares of IFF common stock (calculated as further described in “The Merger Agreement – Merger Consideration”). However, DuPont stockholders should carefully read this document, which contains important information about the Transactions, DuPont, IFF and N&B. In addition, should you want

Why has DuPont decided to separate the N&B Business from DuPont and combine it with IFF through a Reverse Morris Trust transaction?

DuPont has decided to pursue a combination with IFF to create a global leader in high-value ingredients and solutions serving food & beverage, home & personal care and health & wellness end markets. Executing this combination through a Reverse Morris Trust transaction is expected to be tax-efficient to DuPont and its stockholders.

Why has DuPont decided to separate N&B from DuPont through both an exchange offer and a spin-off?

DuPont believes that distribution of a portion of the shares of N&B common stock that it holds to DuPont stockholders by way of an exchange offer, rather than distributing all of the shares of N&B common stock in a pro rata spin-off, is a tax-efficient way to divest its interest in N&B while allowing DuPont’s stockholders an opportunity to adjust their current investment between DuPont and the post-Merger IFF. See “The Transactions—DuPont’s Reasons for the Transactions.” Regardless of the Exchange Offer, DuPont will distribute                 shares of N&B common stock held by DuPont on a pro rata basis in the Spin-Off to holders of DuPont common stock whose shares of DuPont common stock remain outstanding after consummation of the Exchange Offer, based on the relative number of shares of DuPont common stock held by such holders, excluding those shares of DuPont common stock that have been validly tendered and accepted for exchange. In addition, if an insufficient number of shares of DuPont common stock have been tendered such that fewer than all shares of N&B common stock offered by DuPont in the Exchange Offer are exchanged (including due to the upper limit being reached), then such remaining shares of N&B common stock will be included in the Spin-Off. DuPont believes that the Exchange Offer, combined with the Spin-Off, is the most efficient way to allow holders of DuPont common stock to own an interest in a post-Merger IFF that wholly owns the entire business of N&B. See “The Transactions—DuPont’s Reasons for the Transactions.”

Will DuPont stockholders who sell their shares of DuPont common stock shortly before the completion of the Distribution and Merger still be entitled to receive shares of IFF common stock with respect to the shares of DuPont common stock that were sold?

No. Unless the Exchange Offer is terminated by DuPont prior to the expiration date, shares of N&B common stock (and, ultimately, shares of IFF common stock) will only be received by DuPont stockholders that either (i) tender their shares in the Exchange Offer or (ii) are stockholders of DuPont as of the record date, which will be announced by DuPont, but is expected to be following the time at which any validly tendered shares of DuPont common stock are accepted in the Exchange Offer (and as such after the completion of the Exchange Offer). As such, DuPont stockholders who sell their shares prior to the completion of the Distribution will not receive any shares of N&B common stock in the Distribution or shares of IFF common stock in the Merger. In addition, any DuPont stockholder who validly tenders (and does not properly withdraw) shares of DuPont common stock for shares of N&B common stock and whose shares are accepted in the Exchange Offer will waive their rights with respect to such shares to receive, and forfeit any rights to, shares of N&B common stock distributed on a pro rata basis to DuPont stockholders in the Spin-Off. To the extent DuPont terminates the Exchange Offer, and determines to distribute the shares

Will holders of DuPont stock options or restricted stock units have the opportunity to exchange their DuPont stock options or restricted stock units for IFF common stock in the Exchange Offer?

No, neither holders of vested or unvested stock options nor holders of restricted stock units (including performance-based restricted stock units and time-based restricted stock units) can tender the shares of DuPont common stock underlying such awards in the Exchange Offer. However, holders of vested and unexercised DuPont stock options can exercise their vested stock options in accordance with the terms of the agreements under which the options were issued and tender in the Exchange Offer the shares of DuPont common stock received upon exercise. The exercise of a DuPont stock option cannot be revoked for any reason, including if the Exchange Offer is terminated for any reason or if shares of DuPont common stock received upon exercise are tendered and not accepted for exchange in the Exchange Offer. Additionally, if you hold shares of DuPont common stock as a result of the vesting and settlement of restricted stock units, these shares can be tendered in the Exchange Offer.

What are the steps for the Transactions described above?

Below is a step-by-step list illustrating the material events relating to the Separation, the Distribution and the Merger. Each of these events, as well as any conditions to their consummation, is discussed in more detail elsewhere in this prospectus.

What are DuPont’s reasons for pursuing the Transactions described in this prospectus?

In reaching its decision to approve the Merger Agreement, the Separation Agreement and the Transactions, DuPont board consulted with DuPont’s senior management as well as DuPont’s legal and financial advisors and considered a wide variety of factors, including the significant factors listed below, as generally supporting its decision:

the Transactions resulted from a competitive auction process that was conducted by DuPont and its advisors and involved the participation of several interested parties;

the belief that the Transactions provide the most attractive value with respect to the N&B Business;

the expectation that the Separation, the Distribution and the Merger generally would result in a tax-efficient disposition of the N&B Business for DuPont and DuPont’s stockholders, while a sale of the N&B Business for cash would result in a taxable disposition for DuPont;

DuPont would receive approximately $7.3 billion in cash (subject to adjustment) in connection with the Transactions, which would be received tax-free by DuPont to the extent such cash is used for repayment of certain debt, payment of dividends and/or share repurchases;

due to the shares of IFF common stock that would be received by DuPont stockholders as consideration for the Merger, DuPont stockholders would have the opportunity to participate in the combined IFF and N&B businesses after the consummation of the Transactions; and

the review by the DuPont board of directors with DuPont’s senior management and legal and financial advisors of the terms and conditions and structure of the Merger Agreement, the Separation Agreement, the form of the Tax Matters Agreement, the Employee Matters Agreement and the other agreements relating to the Transactions, including the parties’ representations, warranties and covenants, the conditions to their respective obligations and the termination provisions, as well as the likelihood of the consummation of the Transactions and the DuPont board of directors’ evaluation of the likely time period necessary to close the Transactions.

What are IFF’s reasons for pursuing the Transactions described in this prospectus?

In reaching its decision to approve the Transaction Documents and the Transactions and recommend that IFF shareholders approve the Share Issuance, the IFF board of directors considered a wide variety of factors, including the significant factors listed below, as generally supporting its decision:

the increased size, economies of scale, geographic presence and total capabilities of IFF after the Transactions, which are expected to enable IFF to improve its cost structure, deepen its innovation platform, enhance growth and expand margins;

the complementary asset portfolios and strengths of IFF and the N&B Business and the expectation that the combination with the N&B Business would diversify and expand IFF’s mix of product offerings, including the N&B Business’s food & beverage, health & biosciences and pharma solutions platforms;

the belief that IFF would benefit from the scale of the combined company and diversity of its lines of business, making it less dependent on the performance of any particular segment or business line;

the expectation that IFF would maintain broad market presence, with an enhanced position in the food & beverage, home & personal care and health & wellness markets;

the expectation that IFF would achieve approximately $300 million of estimated cost synergies anticipated on a run-rate basis by the end of the third year following the consummation of the Transactions as a result of anticipated procurement improvements along with manufacturing and organizational efficiencies, as well as have an enhanced ability to drive volumes via a combination of cross-selling opportunities across the enhanced portfolio and the creation of integrated solutions, which is expected to generate more than $400 million in run-rate revenue synergies by the end of the third year following the consummation of the Transactions;

the expectation that the combination of IFF and N&B Business employees’ experience will drive improvements in manufacturing, R&D, leadership and growth, and enhance IFF’s ability to achieve its strategic objectives with respect to its existing business and the businesses of the combined company;

the expectation that the combined company will provide a compelling value proposition to global, regional and local customers, including through the provision of differentiated integrated solutions using the complementary capabilities of each business;

the expectation that the cash flow from the combined businesses after the Transactions would be strong enough to allow IFF to maintain its current quarterly dividend policy, reduce indebtedness incurred to finance the Transactions and maintain its investment grade rating;

the significant increase in total equity market capitalization of IFF, which could increase the trading volume, and therefore, the liquidity, of IFF’s common stock;

the fact that the consideration payable by IFF in the Merger consists, in part, of IFF’s common stock, enabling IFF to acquire the N&B Business without incurring the amount of indebtedness that would be required to fund an all-cash transaction;

the fact that IFF shareholders as of immediately prior to the completion of the Merger are expected to own 44.6% of the issued and outstanding shares of common stock of the combined company, on a fully diluted basis, immediately following completion of the Merger, and will have the opportunity to share in the future growth and expected synergies of the combined company while retaining the flexibility of selling all or a portion of those shares;

the fact that the management team of IFF, following the closing of the Transactions, would continue to be led by IFF’s Chairman and Chief Executive Officer and IFF’s senior management team would be expanded to include executives from IFF and the N&B Business;

the fact that the Merger Agreement and the other Transaction Documents and the aggregate consideration to be paid by IFF pursuant to the Merger Agreement were the result of extensive arms-length negotiations between representatives of IFF and DuPont, and the IFF board of directors’ belief that IFF had negotiated the transaction terms most favorable to IFF that DuPont would be willing to accept;

the expectation that IFF’s experience with acquiring and integrating businesses and growing larger companies will enhance IFF’s ability to integrate the N&B Business and grow the combined company;

the expectation that DuPont’s experience with separating its business lines through prior spin-offs or divestitures would lower the execution risk associated with the separation of the N&B Business from DuPont’s other businesses;

the expectation that IFF’s board of directors will benefit from expertise provided by the addition to its board of six directors to be designated by DuPont, including Mr. Ed Breen who will join the board of IFF as a DuPont appointee and will serve as Lead Independent Director starting June 1, 2021;

the support of IFF’s largest shareholder, Winder Investment Pte Ltd (“Winder”), and its willingness to enter into a voting agreement to vote in favor of the Share Issuance;

the opinion of Greenhill & Co., LLC (“Greenhill”) rendered to the IFF board of directors on December 15, 2019, that, as of the date of the written fairness opinion and based upon and subject to the factors and assumptions set forth in such written fairness opinion, the exchange ratio set forth in the Merger Agreement was fair from a financial point of view to IFF, as more fully described below in “Opinion of Greenhill & Co., LLC;”

the opinion of Morgan Stanley & Co. LLC (“Morgan Stanley”) rendered to the IFF board of directors on December 15, 2019, that, as of such date and based upon and subject to the assumptions made, procedures followed, matters considered, and qualifications and limitations on the scope of review undertaken by Morgan Stanley as set forth in such written fairness opinion, the exchange ratio pursuant to the Merger Agreement was fair from a financial point of view to IFF, as more fully described below in “Opinion of Morgan Stanley & Co. LLC;” and

the ability of the IFF board of directors to withdraw or modify its recommendation that IFF’s shareholders approve the Share Issuance, subject to the limitations set forth in the Merger Agreement, including, without limitation, the potential payment of a termination fee and the obligation of IFF to proceed with a vote of IFF’s shareholders on the Share Issuance regardless of such withdrawal or modification of its recommendation.

Why will the ownership of IFF following the Transactions between DuPont equityholders and existing IFF equityholders be approximately 55.4% and 44.6% on a fully diluted basis, respectively?

It is expected that upon completion of the Transactions, pre-Merger holders of shares of N&B common stock and N&B Employees will hold approximately 55.4% of IFF’s common stock on a fully diluted basis and IFF’s existing equityholders will hold approximately 44.6% of IFF’s common stock on a fully diluted basis (in each case, excluding any overlaps in the pre-Merger shareholder bases). The ownership of IFF following the Merger was the result of a negotiated value exchange between DuPont and IFF, which was based upon each party’s valuations, prior to the execution of the Merger Agreement and the Separation Agreement, of IFF and the N&B Business.

What will DuPont stockholders receive in the Transactions?

In the Exchange Offer, DuPont will offer to DuPont stockholders the right to exchange all or a portion of their shares of DuPont common stock for    shares of N&B common stock. Following the Exchange Offer, the remaining shares of N&B common stock that were not offered by DuPont in the Exchange Offer (expected to be approximately    shares of N&B common stock), as well as any other remaining shares of N&B common stock if the Exchange Offer is not fully subscribed, will be distributed on a pro rata basis in the Spin-Off to DuPont stockholders as of the record date in respect of those shares of DuPont common stock that remain outstanding after consummation of the Exchange Offer. In the Merger, the shares of N&B common stock will be automatically converted into the right to receive shares of IFF common stock. Thus, each DuPont stockholder will ultimately receive shares of IFF common stock in the Distribution and the Merger. DuPont stockholders will not be required to pay for the shares of N&B common stock distributed in the Spin-Off or the shares of IFF common stock issued in the Merger. DuPont stockholders participating in the Exchange Offer will be required to exchange those shares that they tender in the Exchange Offer and that are not properly withdrawn and accepted by DuPont for the shares of N&B common stock they receive therefore (see “The Exchange Offer – Terms of the Exchange Offer”). DuPont stockholders will receive cash from the Exchange Offer Agent in lieu of any fractional shares of IFF common stock to which such stockholders would otherwise be entitled. All shares of IFF common stock issued in the Merger will be issued in book entry form.

Are there any conditions to the consummation of the Transactions?

Yes. Consummation of the Transactions is subject to a number of conditions, including:

the approval by IFF’s shareholders of the Share Issuance;

the registration statements on Forms S-4 and S-1 of which this prospectus is a part have become effective under the Securities Act;

the Separation and the Distribution shall have been consummated;

the expiration or termination of any waiting period applicable to the Merger under applicable antitrust or competition laws in the United States (which waiting period has expired and approvals have been received) and receipt of additional antitrust approvals in applicable jurisdictions;

DuPont shall have received the Special Cash Payment immediately before the Distribution;

the receipt by DuPont of the Tax Opinion from DuPont’s tax counsel, dated as of the closing date of the Merger; and

other customary conditions.

What will IFF shareholders receive in the Merger?

IFF shareholders will not directly receive any consideration in the Merger. All shares of IFF common stock issued and outstanding immediately before the Merger will remain issued and outstanding after the consummation of the Merger. Immediately after the Merger, IFF shareholders will continue to own shares in IFF, which will include the N&B Business by virtue of the fact that N&B will be a wholly owned subsidiary of IFF. IFF will also be responsible for repaying the approximately $7.3 billion of debt that will be incurred or refinanced in connection with the Transactions in connection with paying the Special Cash Payment. After the consummation of the Merger, the debt obligations incurred by N&B in connection with the Special Cash Payment will be guaranteed by IFF. In addition, following the Merger, by virtue of the fact N&B will be a wholly owned subsidiary of IFF, the consolidated indebtedness of IFF and its subsidiaries will include the indebtedness incurred by N&B in the debt financings completed prior to the Distribution (See “Debt Financing”). At the election of N&B and IFF, IFF may assume these N&B obligations, which assumption is expected to occur after the Second Merger.

What is the estimated total value of the consideration in the Transactions?

IFF expects to issue approximately                million shares of IFF common stock in the Merger. In addition, DuPont will receive a one-time Special Cash Payment from N&B, subject to certain adjustments. Based upon the reported closing sale price of $                per share for IFF common stock on the NYSE on                , 2020 and assuming no adjustments to the Special Cash Payment, the total combined value of the shares to be issued by IFF and the cash expected to be received by DuPont from N&B would have been approximately $                billion. The actual value of the IFF common stock to be issued in the Merger will depend on the market price of shares of IFF common stock at the time of determination and the amount of the Special Cash Payment will be determined based on adjustments thereto (if any), see “The Separation Agreement—The Separation—Special Cash Payment and Post-Closing Adjustments.”

Are there possible adverse effects on the value of IFF common stock to be received by DuPont stockholders?

DuPont stockholders, by virtue of the Spin-Off, and if they elect to exchange their shares of DuPont common stock for shares of N&B common stock in the Exchange Offer, will receive shares of IFF common stock. The Share Issuance (as well as any discount in the Exchange Offer), may negatively affect the market price of IFF common stock. IFF also expects to incur significant one-time costs in connection with the Transactions, including advisory, legal, accounting and other professional fees related to the Transactions, transition and integration expenses, such as consulting professionals’ fees, information technology implementation costs, financing fees and relocation costs, that IFF management believes are necessary to realize anticipated annualized cost synergies. The incurrence of these costs may have an adverse impact on IFF’s liquidity or operating results in the periods in which they are incurred. Finally, IFF will be required to devote a significant amount of time and attention to the process of integrating the operations of IFF and the N&B Business. If IFF is not able to effectively manage the process, IFF’s business could suffer and its stock price may decline. In addition, the market price of IFF common stock could decline as a result of sales of a large number of shares of IFF common stock in the market after the consummation of the Transactions or even the perception that these sales could occur. See “Risk Factors” for a further discussion of the material risks associated with the Transactions.

How will the Transactions impact the future liquidity and capital resources of IFF?

IFF’s level of indebtedness will increase as a result of the Transactions. In connection with the Transactions, N&B will be the initial borrower under the Term Loan Facility and the initial issuer of the Notes (and if such Notes are not issued, the initial borrower under the Bridge Facility), incurring total indebtedness of approximately $7.5 billion. Following the consummation of the Transactions, all obligations of N&B with respect to the Term Loan Facility and the Bridge Facility (or, if applicable, the Notes) will be guaranteed by IFF or at the election of N&B and IFF, IFF may assume these N&B obligations, which assumption is expected to occur after the Second Merger. In addition, following the Merger, by virtue of the fact N&B will be a wholly owned subsidiary of IFF, the consolidated indebtedness of IFF and its subsidiaries will include the indebtedness incurred by N&B in the debt financings completed prior to the Distribution (See “Debt Financing”). IFF anticipates that its primary sources of liquidity for working capital and operating activities will be cash from operations and borrowings under its existing credit facilities. IFF expects that these sources of liquidity will be sufficient to make required payments of interest on the outstanding IFF debt and to fund working capital and capital expenditure requirements, including the significant one-time costs relating to the Transactions. IFF expects that it will be able to comply with the financial and other covenants under the credit agreements governing the Term Loan Facility, the indentures or other instruments governing the Notes and the credit agreement governing the Bridge Facility, if any.

How do the Transactions impact IFF’s dividend policy?

Declarations of dividends on IFF’s common stock are made at the discretion of IFF’s board of directors upon the board’s determination that the declaration of dividends are in the best interest of IFF’s shareholders. IFF has consistently paid regular dividends, and in 2019, IFF’s board of directors declared total cash dividends of $2.96 per share. Following the Merger, IFF intends to maintain its current dividend policy and remains committed to maintaining its history of paying a dividend to investors, as determined by its Board of Directors at its discretion based on various factors.

What will DuPont receive in the Transactions?

Immediately prior to the Distribution, DuPont will receive the Special Cash Payment in the amount of approximately $7.3 billion, subject to adjustment. See “The Separation Agreement—The Separation—Special Cash Payment and Post-Closing Adjustments.”

Will the Separation, the Distribution or the Merger affect the DuPont Equity Awards held by employees of the N&B Business who become N&B Employees?

Yes. Certain employees of the N&B Business who will become N&B Employees may hold DuPont Options, DuPont Stock Appreciation Rights, DuPont RSU Awards, DuPont PSU Awards or DuPont Restricted Stock Awards. Upon consummation of the Merger, each DuPont Option and DuPont Stock Appreciation Right that is held by a DuPont employee who becomes an N&B Employee will be converted into an IFF Option or IFF stock appreciation right, as applicable. Upon consummation of the Merger, each DuPont RSU Award that is held by a DuPont employee who becomes an N&B Employee will be converted into an IFF RSU, and will otherwise be subject to the same terms and conditions (excluding any rights to dividend equivalents after the closing date of the Merger). Upon consummation of the Merger, each DuPont PSU Award that is held by a DuPont employee who becomes an N&B Employee will be converted into an IFF RSU (excluding any rights to dividend equivalents after the closing date of the Merger), with the performance criteria under the DuPont PSU Award deemed satisfied at the actual level of performance immediately prior to the closing date of the Merger. Each DuPont Restricted Stock Award that is held by a DuPont employee who becomes an N&B Employee will be converted into IFF restricted stock upon consummation of the Merger.

Will the Separation, the Distribution or the Merger affect the DuPont equity-based awards held by current and former employees of DuPont who do not become N&B Employees?

Certain current and former employees of DuPont who will not become N&B Employees hold equity-based awards relating to shares of DuPont common stock. The number and the exercise price of DuPont Options and DuPont Stock Appreciation Rights held by these current and former employees may be adjusted if determined by the DuPont board of directors to be necessary so that there is no change by reason of the proposed Transactions to the intrinsic value of the options or stock appreciation rights (the excess of the fair market value of the underlying shares of DuPont common stock over the award’s aggregate exercise price) or the ratio of the award’s aggregate exercise price to the fair market value of the underlying shares of DuPont common stock, and the number of other DuPont Equity Awards held by these current and former employees may be similarly adjusted to the extent necessary so that there is no change by reason of the proposed Transactions to the aggregate fair market value of the DuPont Equity Awards. In addition, any performance based vesting conditions applicable to the DuPont Equity Awards may be adjusted if determined by the DuPont board of directors to be necessary to reflect the proposed Transactions.

What are the material U.S. federal income tax consequences to DuPont stockholders resulting from the Distribution and the Mergers?

The completion of the Internal Reorganization, Distribution, and Merger is conditioned upon the receipt by DuPont of a tax opinion from counsel to the effect that, among other things, for U.S. federal income tax purposes, (a) the Parent Contribution, Special Cash Payment and Distribution, taken together, will qualify as a reorganization under Sections 355(a), 361 and 368(a)(1)(D) of the Code and (b) the Merger and the Second Merger will be treated as an integrated plan described in Rev. Rul. 2001-46, 2001-2 C.B. 321 and qualify as a tax-free reorganization within the meaning of Section 368(a) of the Code (the “Tax Opinion”). Provided that the Parent Contribution, Special Cash Payment and Distribution so qualify, DuPont’s stockholders will not recognize any taxable income, gain or loss as a result of receiving N&B shares in the Distribution for U.S. federal income tax purposes. Provided that the Mergers so qualify, DuPont’s stockholders will not recognize any taxable income, gain or loss as a result of the Mergers for U.S. federal income tax purposes (except for any gain or loss attributable to the receipt of cash in lieu of fractional shares of IFF common stock). See “U.S. Federal Income Tax Consequences of the Transactions” for more information regarding the potential tax consequences of the Transactions.

What are the material U.S. federal income tax consequences to IFF and IFF’s shareholders resulting from the Transactions?

IFF will not recognize any gain or loss for U.S. federal income tax purposes as a result of the Mergers. Because IFF shareholders will not participate in the Distribution or the Mergers, IFF shareholders will generally not recognize gain or loss upon either the Distribution (including the Exchange Offer) or the Mergers. IFF shareholders should consult their own tax advisors for a full understanding of the tax consequences to them of the Distribution and the Mergers.

Are there risks associated with the Transactions?

Yes. The material risks and uncertainties associated with the Transactions are discussed in the section entitled “Risk Factors” beginning on page 56 and the section entitled “Cautionary Statement Concerning Forward-Looking Statements” beginning on page 90. Those risks include, among others, the possibility that the Transactions may not be completed, the possibility that IFF may fail to realize the anticipated benefits of the Merger, the uncertainty that IFF will be able to integrate the N&B Business successfully, the possibility that IFF may be unable to provide benefits and services or access to equivalent financial strength and resources to the N&B Business that historically have been provided by DuPont, and the substantial dilution to the ownership interest of current IFF shareholders following the consummation of the Merger.

Who will serve on the IFF board of directors following completion of the Merger?

As of immediately following the effective time of the Merger, IFF shall set the size of its board of directors at 13 members, consisting of seven current IFF directors selected by the IFF board of directors and six individuals selected by the DuPont board of directors. The IFF designees will include Andreas Fibig, who will continue to serve as Chairman and CEO of IFF. Current DuPont Executive Chairman and CEO Ed Breen will join the board of IFF following the effective time of the Merger as a DuPont designee and will serve as Lead Independent Director starting upon the later of June 1, 2021 and the closing date of the Merger. At the 2022 annual meeting of IFF shareholders, the IFF board of directors will take all actions necessary to set the size of the IFF board of directors at 12 members, and to include (i) DuPont’s six designated directors (or any replacements thereof) and (ii) six of IFF’s current directors (or any replacements thereof) as nominees to serve a full new term on IFF’s board of directors. Until the second annual meeting of IFF that occurs after consummation of the Merger, (i) if a vacancy is created by the cessation of service of any DuPont designated director, then the remaining DuPont designated directors then in office will designate a replacement by a majority vote, even if less than a quorum, or by a sole DuPont

Will IFF’s current senior management team manage the business of IFF after the Transactions?

Andreas Fibig will continue to serve as Chairman and CEO of IFF. It is expected that the management team of the combined business will consist of members of both IFF’s current management team and management team members from the N&B Business. IFF and N&B have formed an Integration Office, comprised of leaders from both companies, to manage the integration of the companies.

What stockholder approvals are needed in connection with the Transactions?

IFF cannot complete the Transactions unless the proposal relating to the Share Issuance is approved by the affirmative vote of a majority of the shares of IFF common stock represented and voting at the special meeting, either in person or by proxy (assuming a quorum is present). IFF has scheduled a special meeting of shareholders on                , 2020 to approve the Share Issuance. No vote of DuPont stockholders is required or being sought in connection with the Transactions.

Where will the IFF shares issued in connection with the Merger be listed?

IFF common stock is listed on the NYSE, Euronext Paris and TASE under “IFF.” After consummation of the Transactions, all shares of IFF common stock issued in the Merger, and all other outstanding shares of IFF common stock, will continue to be listed on the NYSE, Euronext Paris and TASE.

What is the current relationship between N&B and IFF?

N&B is currently a wholly owned subsidiary of DuPont and was formed as a Delaware corporation on October 30, 2019 to effectuate the Separation, the Distribution and the Merger. Other than in connection with the Transactions, there is no relationship between N&B and IFF.

When will the Transactions be completed?

IFF and DuPont are working to complete the Merger as quickly as possible after satisfaction of the closing conditions, including receipt of IFF shareholder approval for the Share Issuance and certain regulatory approvals. In addition, other important conditions to the closing of the Merger exist, including, among other things, the completion of the Separation necessary to separate the N&B Assets and the N&B Liabilities from DuPont’s other businesses and to realign the N&B Companies holding the N&B Assets and the N&B Liabilities under N&B and the receipt by DuPont of the Tax Opinion from its tax counsel. It is possible that factors outside IFF’s and DuPont’s control could require DuPont to complete the Separation and the Distribution and IFF and DuPont to complete the Merger at a later time or not complete them at all. For a discussion of the conditions to the Separation and the Merger, see “The Transactions—Regulatory Approvals” beginning on page 220, “The Merger Agreement—Conditions to the Merger” beginning on page 241, and “The Separation Agreement—Conditions to the Distribution ” beginning on page 256.

Does the Merger Agreement contain an outside date which, once reached, allows a party to terminate?

Yes. Subject to specified qualifications and exceptions, either DuPont or IFF may terminate the Merger Agreement at any time prior to the consummation of the Merger if the Merger has not been consummated by March 15, 2021 or, in certain circumstances at the election of DuPont or IFF, by June 15, 2021. See “The Merger Agreement—Termination.”

Does IFF have to pay anything to DuPont if the Share Issuance is not approved by the IFF shareholders or if the Merger Agreement is otherwise terminated?

Depending on the reasons for termination of the Merger Agreement, IFF may have to pay DuPont a termination fee of $521.5 million (referred to herein as the Termination Fee) or reimburse DuPont for its expenses in connection with the Transactions not to exceed $75 million. DuPont and IFF have also agreed to split 50/50 any commitment fees incurred to the extent the Merger Agreement is terminated. For a discussion of the circumstances under which the Termination Fee is payable by IFF or the requirement to reimburse expenses applies, see “The Merger Agreement—Termination Fees and Expenses Payable in Certain Circumstances.”

Does DuPont have to pay anything to IFF if the Merger Agreement is terminated?

Depending on the reasons for termination of the Merger Agreement, DuPont may have to reimburse IFF for its expenses in connection with the Transactions not to exceed $75 million. For a discussion of the circumstances under which the Termination Fee is payable by DuPont, see “The Merger Agreement—Termination Fees and Expenses Payable in Certain Circumstances.”

Who can answer my questions about the Transactions or the Exchange Offer?

If you have any questions about the Transactions or the Exchange Offer or you would like to request additional documents, including copies of this prospectus and the letter of transmittal (including the instructions thereto), please contact the information agent,                , located at                at the telephone number                or at the email address                .

Who is the transfer agent for IFF common stock and the Exchange Agent for the Merger?

American Stock Transfer & Trust Company is the transfer agent for IFF common stock.                will be the exchange agent (the “Exchange Agent”) for the Merger.

Who is the transfer agent for DuPont common stock and the Exchange Offer Agent for the Distribution?

Computershare is the transfer agent for DuPont common stock and                will be the Exchange Offer Agent for the Distribution.

Where can I find more information about DuPont, IFF, N&B and the Transactions?

You can find out more information about DuPont, IFF, N&B and the Transactions by reading this prospectus and, with respect to DuPont and IFF, from various sources described in “Where You Can Find More Information; Incorporation By Reference” beginning on page 301.