Exhibit 99.3

Unaudited pro forma condensed

combined financial information

On November 9, 2010, Darling International Inc. (“Darling”) executed a definitive agreement and plan of merger (the “Merger Agreement”) by and among Darling, DG Acquisition Corp., a wholly-owned subsidiary of Darling (“Merger Sub”), Griffin Industries, Inc. (“Griffin”) and the shareholders’ representative, pursuant to which, subject to the terms and conditions set forth therein, Merger Sub will merge with and into Griffin, and Griffin will survive as a wholly owned subsidiary of Darling (the “Merger”). The Merger is more fully described under “Description of the Merger” and elsewhere in this Current Report.

The following unaudited pro forma condensed combined financial information is based upon the historical consolidated financial information of Darling and Griffin and has been prepared to reflect the Merger based on the acquisition method of accounting, with Darling treated as the accounting acquirer. Under the acquisition method, the assets and liabilities of Griffin will be recorded by Darling at their respective fair values as of the date the Merger is completed. The unaudited pro forma condensed combined financial information presents the combination of the historical financial statements of Darling and Griffin, adjusted to give effect to the Merger and related financing, based on the assumptions and adjustments described in the accompanying notes to the unaudited pro forma condensed combined financial information. The historical financial information has been adjusted to give effect to events that are directly attributable to the Merger and factually supportable and, in the case of the statement of operations information, that are expected to have a continuing impact.

The unaudited pro forma condensed combined balance sheet information has been prepared as of October 2, 2010, and gives effect to the Merger as if it had occurred on that date. The unaudited pro forma condensed combined statement of operations information, which has been prepared for the year ended January 2, 2010, the nine months ended October 3, 2009 and the nine months ended October 2, 2010 gives effect to the Merger as if it had occurred on January 4, 2009.

The unaudited pro forma condensed combined financial information was prepared using (1) the audited consolidated financial statements of Darling for the fifty two weeks ended January 2, 2010, (2) the unaudited consolidated financial statements of Darling as of and for the nine months ended October 2, 2010 and October 3, 2009, (3) the audited consolidated financial statements of Griffin for the year ended December 31, 2009 and (4) the unaudited consolidated financial statements of Griffin as of and for the nine months ended September 30, 2010 and 2009.

The unaudited pro forma condensed combined financial information is presented for informational purposes only and is not necessarily indicative of the financial position or results of operations that would have been achieved had the transactions been completed at the dates indicated. In addition, the unaudited pro forma condensed combined financial information does not purport to project the future financial position or results of operations of the combined company after completion of the Merger. In the opinion of Darling’s management, all adjustments considered necessary for a fair presentation have been included.

The unaudited pro forma condensed combined financial information does not give effect to any potential cost savings or other operating efficiencies that could result from the Merger. In

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addition, the fair value of the assets acquired and liabilities assumed are based upon estimates. The final allocation is dependent upon third party valuations and other studies that will not be completed until after the Merger is consummated and could vary materially from the estimated allocation used in the unaudited pro forma condensed combined financial information presented herein.

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Unaudited pro forma condensed combined balance sheet

As of October 2, 2010

The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements

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Unaudited pro forma condensed combined statement of operations

For the fiscal year ended January 2, 2010

The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements

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Unaudited pro forma condensed combined

statement of operations

For the nine months ended October 3, 2009

The accompanying notes are an integral part of these unaudited pro forma condensed financial statements

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Unaudited pro forma condensed combined statement of operations

For the nine months ended October 2, 2010

The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements

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Notes to unaudited pro forma condensed

Combined financial statements

1. Basis of presentation

These unaudited pro forma condensed combined financial statements have been prepared based upon historical financial information of Darling and Griffin giving effect to the Merger and other related adjustments described in these footnotes. Certain footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted as permitted by SEC rules and regulations. These unaudited pro forma condensed combined financial statements are not necessarily indicative of the results of operations that would have been achieved had the Merger actually taken place at the dates indicated and do not purport to be indicative of future financial positions or operating results. The unaudited pro forma condensed combined financial statements should be read in conjunction with the historical financial statements.

The Merger will be accounted for using the acquisition method of accounting, in accordance with accounting principles generally accepted in the United States, with Darling treated as the “acquiror” and Griffin as the acquired company. Under the acquisition method, the total estimated purchase price is calculated as described in note 2 below.

The unaudited pro forma condensed combined statements of operations combine the historical consolidated statements of operations of Darling and Griffin, for the nine months ended October 3, 2009 and October 2, 2010 and the fiscal year ended January 2, 2010, giving effect to the Merger and related events as if they had been consummated on January 4, 2009. The unaudited pro forma condensed combined balance sheet combines the historical consolidated balance sheet of Darling and the historical consolidated balance sheet of Griffin, giving effect to the Merger and related events as if they had been consummated on October 2, 2010.

The unaudited pro forma condensed combined income statements do not reflect operational and administrative cost savings, which are referred to as synergies, that management of the combined company believes may be achieved as a result of the Merger, or other incremental costs that may be incurred as a direct result of the Merger.

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

2. Purchase price and financing considerations

Purchase price

For purposes of presentation in the unaudited pro forma condensed combined financial information, the preliminary estimate of the purchase price for Griffin is as follows:

The tangible and intangible assets acquired from Griffin will be recorded as of the closing date of the Merger, at their respective fair values, and added to those of Darling. The reported financial position and results of operations of Darling after completion of the Merger will reflect these values, but will not be restated retroactively to reflect the historical financial position or results of operations of Griffin. The allocation is dependent upon certain valuations and other studies that have not progressed to a stage where there is sufficient information to make a definitive allocation. Accordingly, the purchase price allocation pro forma adjustments are preliminary and have been made solely for the purpose of providing unaudited pro forma condensed combined financial information. The final purchase price allocation, which will be determined subsequent to the closing of the Merger, and its effect on results of operations, may differ significantly from the pro forma amounts included in this section, although these amounts represent management’s best estimate.

For the purpose of the pro forma condensed combined financial information, the above estimated purchase price has been allocated based on a preliminary estimate of the fair value of tangible and intangible assets acquired and liabilities assumed as follows:

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

Darling estimates that substantially all of the acquired identifiable intangible assets will be attributable to the following categories:

Darling recognizes that if the final valuation, which is expected to be completed within three months from the completion of the Merger, derives different amounts from their estimate, Darling will adjust these expected identifiable intangible amounts to those amounts. Any adjustments could result in changes to depreciation or amortization expense from that included in these “pro forma adjustments”.

Financing considerations

Set forth below is a summary of the anticipated sources and uses of cash in the Merger, as if the Merger had occurred as of October 2, 2010:

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

The unaudited pro forma condensed combined financial information included herein reflects management’s estimate of the amounts of financing at the time this unaudited pro forma condensed combined financial information was prepared. The actual amounts of financing will not be determined until shortly before the closing date of the Merger. The unaudited pro forma condensed combined financial information presented herein assumes the following:

Darling will issue approximately $100 million in shares of Darling common stock to the Griffin shareholders in the Merger. The actual number of shares to be issued was computed based upon the volume weighted average price of Darling’s common stock during the 20 business days immediately prior to the signing date of the Merger Agreement. The Rollover Agreement provides for a true-up adjustment in which additional cash consideration of up to $15 million could be paid by Darling if on the True-Up Date (the last day of the 13th full consecutive month following the closing of the Merger) the True-Up Market Price (as defined in the Rollover Agreement) is less than $10.002. If the True-Up Market Price exceeds $10.002, no additional cash consideration will be paid.

Subject to market and other conditions, Darling may raise additional equity capital subsequent to the closing of the Merger, the proceeds of which could be used to pay down a portion of the new Revolver and Term Loan B. The effects of a subsequent equity capital raise, if any, have not been included in the pro forma statements.

The Merger Agreement permits Darling to make an election under IRC Section 338(h)(10) to step up the tax basis of the assets acquired in the Merger. Darling currently intends to make this election. The allocation of the step up to individual assets is dependent upon certain valuations and other studies that have not progressed to a stage where there is sufficient information to make a definitive election or allocation. The deferred tax benefit related to this election has not been included in the pro forma statements.

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

3. Pro forma adjustments

Adjustments included in the column under the heading “Pro Forma Adjustments” in both the unaudited pro forma combined balance sheet and statements of operations correspond with the following:

Pro forma balance sheet adjustments

a. The adjustment reflects the sources and uses of cash for the Merger including a net adjustment of $114.6 million reflected in the “Cash and cash equivalents” caption of the accompanying pro forma balance sheet. This adjustment consists of cash to be used by Darling in the Merger ($75.0 million), cash used by Griffin to purchase the leased fleet from Griffin shareholders ($27.8 million) and a pre-closing cash distribution ($11.7 million) to Griffin shareholders.

b. The adjustments represent an increase to record Griffin property, plant and equipment at estimated fair market value. This also reflects the purchase of the leased fleet by Griffin for $27.8 million prior to the closing of the Merger. Griffin leases certain fleet equipment (primarily trucks, trailers, autos and raw material collection equipment) from its stockholders under short-term operating leases. These leases will terminate and the fleet equipment will be acquired by Griffin prior to the Merger for approximately $27.8 million.

c. The adjustments represent the estimated value of identifiable intangible assets of $467.5 million and the estimated value of goodwill acquired in the Merger of $192.0 million.

d. The adjustment represents $27.5 million of deferred financing costs incurred in the Merger, which is offset by the write-off of $0.9 million in deferred financing cost included in Darling’s balance sheet as of October 2, 2010. The $0.9 million in deferred financing costs will be written-off due to the replacement of the existing credit agreement, which will result in a $0.6 million reduction in retained earnings after adjusting for a $0.3 million deferred income tax benefit.

e. The adjustments represent $763.9 million of new debt used to finance the cash portion of the Merger Consideration and repayment of $28.8 million of existing Darling debt. $3.0 million of such new debt has been recorded as a current liability upon completion of the Merger.

f. The board of directors of Darling has approved a stock incentive plan for management related to the Merger. The stock price on the date of the grant was $12.53. The issuance of the vested stock results in an increase in common stock and a compensation charge of $0.3 million and a corresponding tax benefit of $0.1 million has been reflected as of October 2, 2010.

g. The adjustments represent the issuance as part of the Merger Consideration of approximately 10 million shares, par value $0.01 per share, at an estimated value of $100.0 million, of which $99.9 million will be recorded as additional paid-in capital.

h. The adjustment represents the elimination of Griffin common stock and retained earnings. In addition, $17.5 million (less $6.3 million of tax benefit) of Merger related transaction costs, which are required to be expensed as incurred, have been charged to retained earnings. An additional $27.5 million has been capitalized as deferred financing cost. The $17.5 million and the $27.5 million equal the $45.0 million for fees and expenses in the Sources and Uses of Cash.

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

Pro forma statements of operations adjustments

i. The adjustment to cost of sales and operating expenses represents the removal of lease expense related to the transportation fleet which will be purchased by Griffin prior to the close of the Merger and therefore, will be included in the purchased fixed assets.

j. The adjustment to selling, general and administrative expense represents the compensation charges related to the unvested stock issued under the stock incentive plan approved by the board of directors whereby a total of 640,000 shares of stock were granted on November 11, 2010 at $12.53 per share. The shares vest upon the achievement of certain varying market conditions. Darling has estimated the value of the awards to be $7.21 per share based on the preliminary calculations. The value of the award will be amortized over vesting periods spanning four years.

k. The adjustment to depreciation and amortization expense represents the amortization of certain acquired intangibles and the depreciation of the purchased property, plant and equipment, including the transportation fleet assets which will be purchased by Griffin from stockholders and transferred to fixed assets at the close of the Merger with estimated useful lives of 5 to 8 years. Following the Merger, Darling expects to amortize the fair value of the identifiable intangible assets of $355.5 million acquired in the Merger with finite lives on a straight-line basis over an estimated useful life of 5 to 15 years. Upon finalization of the assets valuations, specific useful lives will be assigned to the acquired assets, and depreciation and amortization will be adjusted accordingly. Darling also expects to have $111.9 million in identifiable intangible assets with indefinite lives.

l. The adjustment represents the interest from the additional debt that will be issued to finance the cash portion of the Merger Consideration. Darling is assuming that it will replace the existing credit agreement, which has a balance outstanding of $28.8 million at October 2, 2010, with a new $325.0 million new revolver of which $213.9 million is assumed to be drawn at close. It also assumed that Darling will borrow $300.0 million under the Term Loan B and receive $250.0 million in proceeds from the Senior Unsecured Notes. The weighted average interest rate for the new debt is assumed to be 6.0%. The adjustment also includes adjusted amortization of deferred financing fees. The prior deferred fees have been replaced with $27.5 million in new financing fees related to the new debt agreements, which will be amortized over the lives of the facilities which are assumed to be 5 years for the revolver, 6 years for Term Loan B and 8 years for the Senior Unsecured Notes. The interest rate assumed in this paragraph is based on financing commitments that Darling has received from prospective lenders related to this Merger.

m. The adjustment represents the income taxes that would have been incurred had the Merger occurred on January 4, 2009, assuming an effective tax rate of 37.3% for the nine months ended October 3, 2009, 35.92% for the nine months ended October 2, 2010, and 37.5% for the year ended January 2, 2010, which in each case was Darling’s effective tax rate for such period.

n. As discussed in the Financing consideration above, 10.0 million shares of Darling common stock are estimated to be issued at closing to the Griffin shareholders. In addition, 0.1 million shares of Darling common stock will be granted to certain Darling employees upon the completion of the Merger pursuant to the stock incentive plan described above.

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

4. Cost savings

The unaudited pro forma condensed combined financial statements do not reflect the projected realization of recurring cost savings. These savings are projected to result from, among other things, the reduction of freight costs, changes in corporate infrastructure and other reductions in operating costs. Although management expects cost savings will result from the Merger, there can be no assurance these cost savings will be achieved.

The unaudited pro forma condensed combined financial statements include non-recurring operating expenses which will be eliminated after the Merger. The impact to Fiscal 2009 would be $7.1 million before tax. These expenses include compensation expense for two executives of Griffin who will not remain employed by the combined company following the Merger and certain charitable contributions.

5. Pro forma income from continuing operations per share

Pro forma income from continuing operations per common share for the fiscal year ended January 2, 2010, the nine months ended October 3, 2009 and the nine months ended October 2, 2010 and the twelve months ended October 2, 2010 have been calculated based on a pro forma basis which reflects the issuance of 10.0 million shares of Darling common stock to the Griffin shareholders in the Merger as described below.

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Notes to unaudited pro forma condensed

Combined financial statements—(continued)

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