GEORGE TOWN, Aug 21 — The Penang Gerakan today disclosed that a letter of protest over the illegal factory operating in Sungai Lembu over the past 10 years, was sent by the Kampung Sungai Lembu Village Development and Security Committee to Chief Minister Lim Guan Eng on September 25 last year.Its vice-chairman, Oh Tong Keong, said the letter was received by a state government representative on October 4, but until…