On 8 July 2008, the Sixth Joint Working Group Meeting on Sino-US Cooperation in Agricultural Science and Technology was held in Beijing. Vice Minister LIU Yanhua, MOST Deputy Secretary General ZHENG Guo'an, and USDA Under Secretary Buchanan addressed the meeting. 

Experts from both sides reviewed the progress in key fields of cooperation in natural resources management, water conservation technology, agricultural product processing, agricultural biotechnology, food safety, dairy production and processing, and bio-energy. They suggested joint research centers be established to further the solid cooperation in certain fields. 

After the meeting, Vice Minister LIU and Under Secretary Buchanan signed the MOST-USDA Agreement on Cooperation in Food Safety and Quality.