Heilongjiang Tangyuan Heli earlier study of humic acid is the chemical products manufacturer, in November 1987 participated in the inaugural meeting of China Association of humic acid, humic acid association member factory of China. Heilongjiang Tangyuan Heli Chemical production of sodium humate in December 1985 to obtain Heilongjiang Science and Technology appraisal (assessment) certificate, product quality and achieve the "People's Republic of professional standards." Heilongjiang Tangyuan Heli Chemical annual production capacity of 6,000 tons, the production of humic acid products have been exported to many countries in Southeast Asia, the majority of international users. Products include: humic acid, nitro humic acid, humic acid sodium, sodium nitro-humic acid, potassium humate, humic.. (more>>)