weifang Longstar Economy and Trading Co., Ltd. is located in the scenic city of Qingzhou. Our main production area is located in Qingzhou economic development zone, with our office located in urban area. Our total area is 100,000 square meters, with a construction area of 60,000 square meters. We have the fixed assets of more than 3 million Yuan. Staffing 320 technicians, we are a high-tech private enterprise.

Our products are sodium silicate and white/black carbon. Our annual production capacity is 60,000 tons of solid sodium silicate and 150,000 tons of liquid sodium silicate. We are the backbone of domestic large-scale enterprises. Our two existing production lines for silica have achieved an annual production capacity of 20,000 tons and our 20,000 square meters of high standard large-scale aquatic food cold storage warehouse will also be put into use.

We have always been adhering to "full participation, pursuit of excellence, honesty and trustworthiness, development of innovation" as business philosophy, relying on the development of scientific and technological innovation, as well as continuous improvement of quality management system. In August, 2003, we passed ISO9001:2000 international quality system certification. We are a unit of National Association of inorganic salt. We will continue to increase investment in science and technology. We make investment analysis of the introduction of the most advanced testing equipment with strong economic strength and technological development capacity. Relying on strict quality assurance system and advanced management level, we have won the trust of users. We will keep on developing new products to meet market demands.