The company was founded in 1996 and is the earliest domestic enterprise focusing on R&D, production and sales of high-end ink coatings. The company was listed on the SME board of the Shenzhen Stock Exchange on December 11, 2009. The company's main business is divided into ink manufacturing business and internet advertising and marketing business. The company's main products include high-end gravure inks, flexographic inks, screen printing inks, etc. Corporate honors: The company has strong technical strength. The technology center has been successively recognized as “Guangdong Provincial Enterprise Technology Center”, “Guangdong Eco-friendly Ink Engineering Technology Research and Development Center”, “China Packaging Federation Packaging and Printing Ink Research and Development Center”, and the “Letong” trademark has been rated as “Famous Trademark of Guangdong Province”. The company has successively passed ISO9001 quality management system and ISO14001 environmental management system certification from international authoritative certification bodies.