Rainbow Dye-Tech (Pvt) Ltd., established in 1967, is a reliable Pakistani producer of synthetic dyes, offering Brown HT (Acid Brown 3)—a high-quality food-grade color used to replicate cocoa or caramel tones in bakery, confectionery, beverages, and dairy products, valued for its stability, performance, and adherence to industry standards. https://rainbowdyetech.co/project/brown-ht/