‘ WEG S.A. TRAFO EQUIPAMENTOS ELÉTRICOS S.A. Publicly held company, Avenida Prefeito Waldemar Grubba, nº 3.300 Jaraguá do Sul, Santa Catarina, CNPJ n.º 84.429.695/0001-11 Publicly held company, Rodovia RS 20, km 6,5 Gravataí, Rio Grande do Sul CNPJ n.º 90.286.105/0001-41 MATERIAL FACT DISCLOSURE WEG S.A. ("WEG”) and TRAFO EQUIPAMENTOS ELÉTRICOS S.A.("Trafo"), jointly referred to as "Companies", complementing the Material Fact Disclosure published on September recommendations made 30, by the 2009, inform Special the following: Independent (i) Committees the ( "Independent Committees") formed at WEG and TRAFO in order to negotiate the basis of the incorporation of shares issued by TRAFO held by the noncontrolling shareholders by WEG, in accordance with article 252 of the Corporations Law (the "Incorporation of Shares") and in compliance with CVM Parecer de Orientação No. 35 of 01.09.2008, and (ii) the resolutions adopted by the respective Boards of Directors at WEG and TRAFO, as follows: 1. Independent Committees. From September 30, 2009 onwards, the members of the Independent Committees of WEG and TRAFO began negotiations, duly advised by, respectively, PricewaterhouseCoopers Corporate Finance & Recovery Ltda., below qualified, and Deloitte Touche Tohmatsu Consultores Ltda., a company headquarters in the city of São Paulo, Rua Alexandre Dumas, 1981, CNPJ / MF under No. 02.189.924/0001-03. The negotiations culminated in December 08, 2009, with the following conclusions, by unanimous deliberation: (i) the criteria to be used to fundament the share substitution ratio is the economic value, based on the appraisal report; ‐ 1 ‐ (ii) the share substitution ratio is of 4.05 common or preferred shares issued by TRAFO for every 1 common share issued by WEG, as this is considered to be an equitable ratio to all shareholders of the Companies, considering that: a) the capital of the WEG is exclusively represented by common shares, in accordance with BMF&BOVESPA Novo Mercado bylaws; and b) economic value is the method that best defines the fair price of the shares of the Companies; (iii) the terms and conditions of the incorporation of shares issued by TRAFO by WEG are fair and appropriate and its implementation is recommended; 2. Boards of Directors. The respective members of the Boards of Directors of WEG and TRAFO, after learning about the discussions, conclusions and recommendations that took place between the members of the Independent Committees, proposed to accept the recommendations of the Independent Committees regarding the previously mentioned share substitution ratio. The respective Boards of Directors decided to approve the Incorporation of Shares proposal, according the terms and conditions contained in the "Protocol and Justification of Incorporation of Shares issued by TRAFO Equipamentos Elétricos SA by WEG SA" ("Protocol and Justification"), the main points of which are described below: a. Incorporation of Shares. The incorporation of all shares issued by TRAFO, except for the shares held indirectly by WEG, through its subsidiary WEG Equipamentos Elétricos S.A., a privately held company with head offices at Avenida Prefeito Waldemar Grubba, nº. 3300, 1st floor, Jaraguá do Sul, Santa Catarina, CNPJ / MF under nº. 07.175.725/0001-60, incorporating a total of 13,277,113 (thirteen million, two hundred seventy seven thousand, one hundred and thirteen) shares issued by TRAFO, which will became a full subsidiary of WEG, under Article 252 of Law 6.404/76 ("LSA"), under the terms and conditions described on the Protocol and Justification. ‐ 2 ‐ b. Base Date. The Incorporation of Shares will be based on financial statements dated September 30, 2009 ("base date") and will be effective, after deliberation by the Extraordinary Shareholders’ Meeting, on December 28, 2009 ("incorporation-date"). c. Justification. The operation is justified by a) for business reasons, to allow for the (i) convergence of available resources, (ii) synergy gains, and (iii) simplification of the current structure, with consequent reduction on financial, operational and administrative costs, as well as (iv) to make WEG the only publicly listed entity within the group of companies under its control, increasing the liquidity; and b) for tax purposes, with benefits for all shareholders of both Companies, as it will allow for (i) the recovery of, under the tax laws, the goodwill from the acquisition of TRAFO shares, to the approximate amount of R$ 78 (seventy eight) million. d. Ratio of substitution. The Incorporation of Shares will result in the noncontrolling shareholders of TRAFO receiving one share issued by WEG for each 4.05 preferred or common shares issued by TRAFO held, as defined by the Boards of Directors of the Company. e. Criteria. The exchange ratio was set based on the criteria economic value of the Companies´ assets, based on the appraisal report prepared by a specialized company, with base date of September 30, 2009. The aforementioned criteria was considered equitable to the shareholders of both Companies, as: (i) the capital stock of the WEG to be exclusively represented by common shares, in accordance with BMF&BOVESPA Novo Mercado bylaws; and (ii) economic value is the method that best defines the fair price of the shares of the Companies, as well as the other terms and conditions presented in the Protocol and Justification. f. Share rights. The holders of common or preferred shares of TRAFO will receive common shares from WEG with the advantages and political and property rights reported in the chart below: ‐ 3 ‐ Prior to the Merger of Shares After the Merger of Shares Common Shares Preferred Shares Common Shares “TRFO4” “WEGE3” “TRFO3” a. Eligible to vote at a. priority in the payment of a. Eligible to vote at General minimum, General Meetings non-cumulative, Meetings dividends of 8% over the own b. right to receive a minimum 25% of dividend the annual of adjusted net according the law. profit nominal capital of such shares, to be divided among them according to the number of shares available, or 10% above the amount that is attributed to the common b. 25% of the adjusted annual net profit according the law, as payment of dividends and/or interests over capital according the law nº 9.249/95 attributed to the dividends shares, prevailing the higher limit. g. Capital increase. The Incorporation of Shares will increase the equity of U U WEG, through the transfer of all shares of non-controlling shareholders of TRAFO, valued by the criteria of economic value, applying the average value between the minimum and maximum values established in the appraisal report provided by specialized company, with base date of September 30, 2009, or R$ 4.31 (four reals and thirty-one cents of real) per share. As such, the total increase will correspond to the amount of R$ 57,224,357.03 (fifty-seven million, two hundred and twenty-four thousand three hundred and fifty-seven reais and three centavos), being R$ 12,293,623.15 (twelve million, two hundred and ninety three thousand, six hundred and twenty three reals and fifteen cents of real) to increase the capital stock and R$ 44,930,733.88 (forty four million, nine hundred and thirty thousand, seven hundred and thirty three reals and eighty eight cents of real) to the Reserve of goodwill subscription. h. The fractions of shares resulting from the ratio of substitution of shares, will be complemented by the delivery of shares already issued by WEG, owned by its controlling shareholder WEG Participações e Serviços SA ‐ 4 ‐ i. Equity Changes. All equity changes occurred at WEG, between the basedate (September 30, 2009) and the incorporation-date (December 28, 2009) will be recorded at WEG, and all equity variations in TRAFO between the base-date (September 30, 2009) and the incorporation-date (December 28, 2009) will be recorded and recognized by WEG through the equity method. j. Right of Withdrawal. The incorporation of shares awards the right of withdrawal to the dissenting shareholders of both WEG and TRAFO, as provided by the pertinent legislation, within 30 days from the date of publication of the minutes of the Extraordinary Shareholders’ Meeting that approves the Protocol and Justification. k. Ratio of substitution at market prices. For the purposes of Article 264 of Law 6404/76, the ratio of substitution of the shares to be incorporated and the shares that will be issued to non-controlling shareholders of TRAFO, valued at market prices, would be 2.16 (two integers and sixteen tenths) commom or preferred shares of TRAFO for every 1 (one) common share of WEG, as per the appraisal report prepared by the specialized firm. l. Considering that the ratio of substitution established by the net equity at market prices criteria (as per the appraisal Valuation report prepared by Price) was shown to be more beneficial to non-controlling shareholders than the ratio of substitution chosen by the by Companies, the dissenting shareholders may choose between (i) the amount of reimbursement pursuant to Article 45 of Law 6404/76, i.e. the value of the net equity of shares, as recorded on the Balance Sheet on December 31, 2008, of R$ 3.53 (three reais and fifty three cents of real) per WEG share, and R$ 1.44 (one real and forty four cents of real) per TRAFO share, and (ii) the net value of the shares at market prices, as per the appraisal report provided by Price, corresponding to R$ 5.39 (five reais and thirty nine cents) per WEG share and R$ 2.50 (two reais and fifty cents) per TRAFO share. m. Composition of the capital stock of WEG S.A. after the incorporation of U U TRAFO shares. After the incorporation of shares WEG will hold, directly and indirectly, 43,377,993 (forty-three million, three hundred and seventy-seven ‐ 5 ‐ thousand, nine hundred and ninety-three) shares representing the entire capital stock of TRAFO, which will become a whole-owned subsidiary of WEG. The stock capital of the WEG will increase from R $ 1,800,000,000.00 (one billion eight hundred million reais), represented by 617,626,729 (six hundred and seventeen million, six hundred and twenty-six thousand, seven hundred and twenty-nine) common shares, without par value, all with voting rights, to R$ 1,812,293,623.15 (one billion, eight hundred and twelve million, two hundred and ninety three thousand, six hundred and twenty three reais and fifteen cents), represented by 620,905.029 (six hundred and twenty million and ninety five thousand, twenty nine) common shares without par value, all with voting rights. n. The incorporation of shares will not be submitted to the regulatory authorities or Brazilian and foreign antitrust regulation. 3. Subsequent operations. Aligned with the justification of the incorporation of shares, and considering that the only this incorporation of shares in not enough archive the desired benefits, two additional steps must ensue, as follows: 3.1 WEG will promoted by the increase of capital in its subsidiary WEL, to the exact amount of the asset increase occurred at WEG as result of the incorporation of TRAFO shares, and this capital increase will be subscribed by WEG with the shares of TRAFO received from the non-controlling shareholders, under the terms of Protocol and Justification (item 2), making WEL the sole shareholder of TRAFO; 3.2 WEL, as the sole shareholder of TRAFO, will incorporate all assets from TRAFO, succeeding it in all its rights and obligations, extinguishing TRAFO and concluding the combination of businesses, as proposed by the management of TRAFO , examined and approved, at the current date, by the Board of Directors of TRAFO on the terms and conditions presented in the Protocol and ‐ 6 ‐ Justification of Merger of Shares of TRAFO by WEL ( "Protocol and Justification of Incorporation"), as follows: a. Base-dates. The Merger will use the financial statements on September 30, 2009 and will be effective on December 30, 2009. b. According to the appraisal report, based on accounting value criteria, prepared by specialized company, the total net assets of TRAFO to be incorporated by WEL is of R$ 76,165,252.77 (seventy-six million one hundred sixty-five thousand two hundred and fifty-two reais and seventyseven centavos), and there are no liabilities and / or contingent liabilities not recorded, as knew by the Companies, to be added by WEL as a result of the Merger. c. Ratio of substitution. Considering that WEL will be the sole shareholder of TRAFO, the capital stock of WEL will not be increased, and thus, it will not be necessary to issue new shares and, in consequence, the establishment of the ratio of substitution of shares, as the net worth of TRAFO will be fully reflected in the net worth of WEL, due to the application of the equity method, which also makes unnecessary the analyses of market prices, under the terms of Article 264 of the LSA, as precedents from Securities and Exchange Commission. d. Shares Rights. The political, property and other rights of shareholders of WEL will not be changed as a result of the incorporation. e. Succession. WEL will assume all rights and obligations of TRAFO of all kinds, including labor (Articles 10 and 448 of the Labor Code), pension (Law 8212/91) and tax (Article 132 of the National Tax Code) present and that may occur in the future. 4. Additionally, for both transactions, incorporation, we inform that: ‐ 7 ‐ incorporation of shares and a. Operation Costs. It is estimated that the transactions will cost approximately R$ 1.5 million (one million five hundred thousand reais), including the cost of publishing, auditors, appraisers, lawyers and other technical professionals to be hired to assist the transactions. b. Date for Exchange of Negotiation Codes. The shares issued by TRAFO will continue to be regularly traded until the close of the Brazilian Stock Market at the day immediately following the expiration date period for the former shareholders of TRAFO in exercising the recess right mentioned on item 2, “k”, by notice to the shareholders. c. Specialized companies. The specialized companies, hired ad referendum of the Extraordinary Shareholders’ Meetings of TRAFO and WEG, Ernst & Young Independent Auditors S/S, a Brazilian “simple society”, with head offices in São Paulo, São Paulo, at Avenida Presidente Juscelino Kubitschek, 1830, Torre 1, 6 andar, enrolled with the CNPJ / MF under nº. 61.366.936/0001-25, and PricewaterhouseCoopers Corporate Finance & Recovery Ltda., with head office in the city of São Paulo, Avenida Francisco Matarazzo, nº. 1400, Torre Torino, Água Branca, enrolled with the CNPJ / MF under nº. 05.487.514/0001-37, to evaluate the assets of the Companies, declare to the Companies that: (i) have no interest, direct or indirect, in any of the Companies or in the incorporation of shares (ii) do not exist situations that could be considered as a conflict or pooling of interests, actual or potential, between any of the specialized companies and WEL, which is controlled by WEG and controlling shareholder of TRAFO, and WEG Participações e Serviços, controlling shareholder of WEG, and (iii) WEG Participações e Serviços and WEL, as well as the directors of the Companies did not induce, limit, hinder or perform any act which has or may have compromised the information access, as well as the use or knowledge of information and documents relevant to the conclusions of the specialized companies. d. Documents Available to the Shareholders: All documents used in the planning, evaluation, promotion and execution of the incorporation, the ‐ 8 ‐ 5. Extraordinary General Meetings. Finally, the Company announced that, as deliberations of their respective Boards of Directors, shall be called Extraordinary General Meetings to decide on the operations herein (in this Material Fact), to be held on 12.28.2009 and 12.28.2009, as Meeting Notice published today. Jaraguá do Sul – SC Gravataí - RS December 9, 2009 Alidor Lueders Luiz Alberto Oppermann Investor Relations Officer Investor Relations Officer WEG S.A. TRAFO EQUIPAMENTOS ELÉTRICOS S.A. ‐ 9 ‐