MasterCard Company is located in the ancient city of Suzhou. It is a high-tech enterprise that integrates research and development, production, and sales of green and environmentally friendly electronic chemicals. It has advanced research and production equipment, a complete series of product projects, professional technical researchers, and a sales team. The company's main products, tin bars and tin wires, have now developed and produced halogen-free low solid non cleaning flux with WSD independent intellectual property rights and patents and its supporting diluents, cleaning agents, wiping water and other environmental friendly soldering tin peripheral products, which can be widely used in computer, information communication, household appliances, precision instruments, electronic toys, digital and other electronic industries.

Adhering to the business philosophy of "customer first, quality first, and service first", the company advocates the enterprise spirit of "unity and development, continuous innovation, and pursuit of perfection", and serves customers with reasonable market prices, excellent product stability, and professional and timely after-sales service.

The company's products have passed strict testing by the world's authoritative testing institutions Shanghai SGS Certification Center, Puni Testing Center, and Saibao Laboratory, such as expansion rate testing, solderability testing, contamination testing, silver chromate test paper testing, copper mirror testing, acid value testing, halogen-free testing, aging testing, etc., all of which have passed the testing; All indicators meet the JISZ3283-2001 standard and meet the ROHS announcement 2011/65/EU technical indicators.