Aiming to establish a corporate identity system and build a professional image, we focus on creating an enterprise of sustainable management. With honesty and integrity, we always listen to the voice of customers and help them solve any problem. By introducing the most recent technology, we provide high value-added and high-tech products. We aim to help employees develop professionally and expand business.

Our main product is copper sulphate. We produce more than 1000 tons of copper sulphate every year. With the executive’s 20 years’ experience in chemistry industry, Dong Tay Sing Industrial Co.,Ltd. pumped money into developing electronic grade and technical grade copper sulphate. After 3-5 years in development, we now manufacture cooper sulphate of high purity and reasonable price and the quality is as good as the products of companies in Japan, United States and Europe.

We have been striving to provide customers with expertise, high quality products and excellent service. Customers can always consult our professional team for any technical problems. Dong Tay Sing Industrial Co.,Ltd. is your best choice.

The amount of impurity in our copper sulphate is minimized and strictly controlled. Many other manufacturers claim to have technical grade copper sulphate with high impurity, but it often contains only 24% copper and more than 100 ppm impurity. Our electronic grade and technical grade copper sulphate have extremely low impurity, always lower than 20 ppm and 100 ppm for each.

Copper (II) sulphate, also known as cupric sulphate or copper sulphate, with chemical formula CuSO4. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4•5H2O), the most commonly bright blue in color. So, other names for copper (II) sulphate are "blue vitriol" and "bluestone".

Copper sulphate pentahydrate, in a copper salts form, is widely used in many industries.