The company was formally established on March 8, 1988, and its shares were listed and traded on the Shanghai Stock Exchange on April 26, 1993. Over 30 years of continuous self-improvement and pursuit of excellence, from developing small green hydropower to transforming integrated energy, from electricity, water and gas factor guarantee to integrated digital intelligent services, in the midst of market ups and downs, the company has always adhered to the corporate philosophy of “putting people first, serving people's livelihood, and green development”, and is rooted in Leshan to grow bigger and stronger, integrate capital operations to expand the resource economy, and build a listed company with integrated electricity, water and gas utilities, focusing on transforming resource advantages into development advantages and continuously serving the economic and social development of Leshan. The company currently has five major businesses: electricity business, natural gas business, tap water business, emerging business, and service business. Company honors include “National Model Workers' Home”, “Sichuan May 1st Labor Award”, Sichuan “Contract-honoring and Reputation” Enterprise, and Leshan Model Worker Unit.