Profile: Pro-Source Fertilizer Co., Ltd. is an agricultural consultancy. We support farmers who were using the imported Ferticare ace water soluble products from Kemira growhow on cotton, processing tomatoes, grapes, and melons. Our products include PSC-UP, Fertigacid, PSC-MAP, and PSC-MKP. Our PSC-UP is a white crystalline powder, and is completely water soluble. No extra acid treatment is required if UP or UP-based fertilizers are applied. It acidifies the water, and reduces the bicarbonate level. Our Fertigacid is used to increase the efficiency of nutrient uptake, and to reduce requirements for acids under hard water conditions, and alkaline soils.