Profile: Zhenjiang Tianlong Chemicals Co., Ltd. produces additives for coatings & inks, pigment intermediates, rosin derivatives and pigment derivatives. We offer rosin derivatives such as rosin 511 and 512. Our 4B acid pigment intermediate is a light gray powder used for pigment red 57:1. Our rosin 511 derivative is used in the treatment of organic pigments. It has a yellow flaky appearance.