As a high-tech company, Lado is currently the only enterprise that has a complete production chain of photosensitive liquid. The production chain ranges from special resin for photosensitive liquid, 1,2- naphthoquinonediazide-5-sulfonyl chloride, to acid generator triazine. Lado is playing a leading role in introducing positive PS photosensitive liquids and upgrading PS plates from hypochromic style to hyperchromic style, which has made Chinese PS plate industry connected to the world market.