Longkou Windstar Chemical Co., Ltd. was founded in 2004 and is a professional manufacturer of ultramarine blue. The company covers an area of 80,000 square meters and has an annual production capacity of 3,000 tons. Our ultramarine is non-toxic, has high tinting strength, vividness, high dispersion and batch quality stability. It is widely used in plastics, rubber, paints, ink, spray, art paint and cosmetics etc. Our products are certified by SGS and comply with RoHS standards. Our products are exported to Europe, the United States, the Middle East, Southeast Asia, Africa and other countries and regions.