Doi Kham was founded under His Majesty, King Bhumibol Adulyadej's vision to enhance the quality of life of Thai People. In 1972, H.M. the King initiated The 1st Royal Factory at Fang, Chiang Mai purchasing agricultural produce of farmers nearby the factory. The agricultural produce were bought and processed under the trademark "Doi Kham" to create good products, open new distribution channels and provide product research and development."Doi Kham Food Products Company Limited" operate as a "Social Enterprise" with expertise in increasing product value and practitioner and promoter of Thai Royal Wisdom that follows H.M. the Kinjg's philosophy to develop higher standard of living and promote self-reliant among the Thais.Doi Kham currently has 3 Royal Factories operating under the purpose from H.M. the King Bhumibol's vision about "Agro-industry" as follow:- The First Royal Factory (Fang), Chaing Mai Province- The Second Royal Factory (Mae Chan), Chiang Rai Province- The Third Royal Factory (Tao Ngoi), Sakon Nakhon ProvinceTomato Paste is manufacture under good process at The Third Royal Factory.