Combinatorial chemistry Duc Giang – Lao Cai, of JSC chemical Duc Giang – Lao Cai, including five manufacturing plants for agriculture chemical and fertilizers: sulfuric acid plant capacity of 400,000 tonnes / year; Phosphoric acid plant capacity of 160,000 tonnes / year; Factory super phosphate fertilizer dual TSP 100,000 tons / year; MAP fertilizer plant of 60,000 tons / year; Factory fodder additives DCP 50,000 tons / year