we are a producer for pigment yellow 150 in China. and our company is Hunan Xiangtan Huaying Fine chemical Co.ltd. there are only about four factories can produce this product pigment yellow 150(CROMOPHTAL YELLOW LA)in the word, we are one of the biggest. and also can produce other pigment used in high quality paint etc. if you are interested to us Please let us know freely. and I will pleausre to supply you our company and products and offer details.