Qingzhou Yongguan Plastics Co., Ltd. was established in 2012 and is located in the Zhuliang Development Zone, Gaoliu Town, Qingzhou City, Shandong Province, China. It is a specialized manufacturer integrating the R&D, production, and sales of functional films, focusing on PE agricultural greenhouse films and industrial packaging films. The company’s factory covers an area of over 10,000 square meters, employs nearly 100 staff members, and boasts an annual production capacity exceeding 10,000 tons. It is a member unit of the Agricultural Film Professional Committee of the China Plastics Processing Industry Association. Leveraging mature production processes, a professional R&D team, and a well-established production system, the company has gradually developed a product portfolio that simultaneously advances both agricultural and industrial packaging films. In the agricultural film sector, the company primarily produces intelligent temperature‑regulating films, PO films, seven‑layer co‑extruded EVA metallocene anti‑fog and drip‑proof films, black-and-white mulch films, silver‑gray weed‑suppressing films, light‑transforming films, diffusing films, ultra‑insulating films, biodegradable mulch films, and aquaculture films. The width of its agricultural film products ranges from 1 to 20 meters, and it accommodates customized requirements for various specifications, performance characteristics, and applications. Among these, the intelligent temperature‑regulating film is a signature product independently developed by the company, featuring automatic regulation of greenhouse temperatures, high light transmittance, excellent insulation, superior strength, and a long service life. In the industrial packaging film sector, the company’s offerings include V‑method casting films, EVOH high‑barrier films specially designed for shipping containers, nylon (PA) packaging films, wood‑packaging films, heat‑shrink films, stretch wraps, and cotton‑baling films, meeting the application needs of multiple industries such as agriculture, food processing, logistics and transportation, wood processing, casting, and industrial packaging. Currently, the company’s products are exported to countries and regions including South Korea, Japan, Vietnam, Thailand, Malaysia, Kazakhstan, Argentina, Mexico, and Australia, and it has established cooperative relationships with Australian wood‑packaging companies, as well as agricultural and transportation enterprises in South Korea and Japan. Yongguan Plastics is committed to providing domestic and international customers with a diverse range of high‑performance functional films through continuous product R&D, stable production capabilities, and flexible customization services.