NOTICE TO THE MARKET In compliance with the provisions of CVM Ruling No. 358/2002, as amended, WEG S.A. ("Company"), hereby informs its shareholders and the market in general that, according to the provisions of CVM Ruling no. 384/2003, has contracted BTG PACTUAL CORRETORA DE TÍTULOS E VALORES MOBILIÁRIOS S.A., with its head offices at Avenida Brigadeiro Faria Lima, 3.729, 10th floor-part, in the city of São Paulo, State of São Paulo, enrolled with the Brazilian Corporate Tax Register (CNPJ/MF) under number 43.815.158/0001-22 (“Market Maker”), to operate as the market maker of its common shares ticker “WEGE3” listed in the São Paulo Stock Exchange (BM&FBOVESPA) with the purpose of increasing the liquidity of the abovementioned shares, for a period of 6 (six) months, automatically renewed for an equal period in case there is not a contrary manifestation of either party. The Company also informs that it has 208,458,949 common shares outstanding in the market and that it has not entered into any agreement with the market maker regulating the exercise of voting rights or the purchase and sale of securities of its issuance. The Market Maker will start the rendering of its services on September 22, 2010. Jaraguá do Sul, September 21, 2010. Laurence Beltrão Gomes Investor Relations Officer Página 1 de 1 WEG S.A. A Publicly Held Company NIRE nº 42.300.012.203 CNPJ/MF: nº 84.429.695/0001-11 Avenida Prefeito Waldemar Grubba, 3300 – 89256-900 – Jaraguá do Sul – SC – Brazil