The agreement was signed during Cambodia Prime Minister Hun Sen's visit to Beijing, China's General Administration of Quality Supervision, Inspection and Quarantine said in a brief statement.
China, the world's third-largest ethanol producer, imports tapioca, mainly from Thailand and Vietnam, and some ethanol producers have increased imports to replace corn.
China's imports of the root plant, also used to make starch, rose 4.5 percent to 5.2 million tonnes in the first 10 months of this year, according to official Customs figures. (Reuters)
