Gasgoo.com (Shanghai August 18) - BYD has agreed to cooperate with the Hong Kong Auto Parts Industry Association to jointly research and develop electric vehicle technology, investoday.com.cn reported today. The two sides signed a contract in Hong Kong yesterday, with State Council Vice-Premier and Deputy Party Secretary Li Keqiang and Chief Executive and President of the Executive Council of Hong Kong Donald Tsang Yam-kuen among the over 100 guests in attendance.