According to the China Customs, the bilateral trade volume between China and Thailand in 2005 reached US$21.81 billion, up by 25.8 percent year on year, among which China's export to Thailand was US$7.82 billion, up by 34.8 percent year on year, while China's import from Thailand was US$13.99 billion, up by 21.2 percent year on year. China had a deficit of US$6.17 billion. Major Chinese exports to Thailand included electric power machinery and parts, computers and parts, iron and steel products, machinery, equipment and parts, chemical products, cloth, household electrical appliances, mineral products and metal scrap, integrated circuits, daily necessities, etc. China's main imports from Thailand included computers and parts, plastic resin, natural rubber, crude oil, chemical products, cassava products, integrated circuits, iron and steel products, timber and products thereof, LPG, etc. According to the Ministry of Commerce of the People's Republic of China (hereinafter referred to as MOFCOM), the turnover of completed engineering contracts by the Chinese companies in Thailand reached US$300 million in 2005, and the volume of the newly signed contracts was US$880 million. The volume of completed labor service cooperation contracts was US$7.8 million, and that of the newly signed labor service cooperation contracts was US$3.35 million. The turnover of the newly signed design and consultant contracts was US$1.6million. By the end of 2005, the accumulated turnover of completed engineering contracts by the Chinese companies had amounted to US$1.8 billion with the total contractual value of US$3.51 billion; and the volume of the completed labor service cooperation contracts had reached US$140 million with the total contractual amount standing at US$200 million.

Approved by or registered with MOFCOM, China set up 16 non-financial Chinese-funded enterprises in Thailand in 2005 with a contractual investment of US$72.17 million by the Chinese side. By the end of 2005, a total of 278 non- financial Chinese- funded enterprises had been established in Thailand with a total contractual investment of US$250 million from the Chinese side. According to MOFCOM, Thailand invested in 147 projects in China in 2005 with a contractual investment of US$1.04 billion and the paid-up capital reached US$95.90 million.