Korean pine nut kernels are all-natural green food with extremely high nutritional value. They are rich in vitamins and essential fatty acids including oleic acid, linoleic acid and linolenic acid. They also contain pinolenic acid, which is rarely found in other plants, effective in easing hay fever, lowering blood sugar and relieving fatigue.

Cahekou in Benxi has a long history of artificial pine forest cultivation. Japanese larch was introduced in the early 1930s, followed by large-scale planting of Changbai larch and Korean pine. In the spring of 1931, 2.2 hectares of pine seedlings were planted in the wasteland of Xigou, Cahekou. After the liberation of Benxi, another 7 hectares of Korean pine saplings were planted in 1949, forming one of China’s earliest large-scale artificial Korean pine forests. Benefiting from this unique ecological condition, Cahekou Korean Pine Seeds became a well-known green specialty. In 2010, the General Administration of Quality Supervision, Inspection and Quarantine approved it as a national geographical indication product (Announcement No. 138 of 2010).

Huanren Hashima refers to the oviduct of Rana chensinensis raised and processed strictly in accordance with local breeding standards within the geographical indication protection zone of Huanren Manchu Autonomous County. The protected area covers the entire administrative territory of Huanren Manchu Autonomous County, as specified in Document Huan Zheng〔2007〕No.55 issued by the county government.

After preliminary review, expert assessment and public notice by the national quality supervision authority, Huanren Korean Pine Seeds and Huanren Large Hazelnuts were officially granted national geographical indication protection.

In recent years, cultivation of pine nuts and hazelnuts has boomed across every township of Huanren County. The annual output reaches 2.39 million kilograms of pine nuts and 1 million kilograms of hazelnuts. The geographical indication protection covers the whole administrative region of Huanren Manchu Autonomous County.

The geographical indication scope covers the entire administrative area of Huanren Manchu Autonomous County.