Since 1967, Rainbow Dye-Tech (Pvt) Ltd. has been delivering premium synthetic dyes in Pakistan, including Brown HT (Acid Brown 3), a food-grade coloring agent widely used to replace cocoa or caramel and provide deep brown shades in bakery, confectionery, beverages, and dairy products, ensuring quality, consistency, and dependable results. https://rainbowdyetech.co/project/brown-ht/