Inner Mongolia OJing Science and Technology Co., Ltd.

Inner Mongolia OJing Science and Technology Co., Ltd. is a national high-tech enterprise established in April 2011 and listed on the Shenzhen Stock Exchange in 2022. The company is primarily engaged in the manufacturing of products and services related to the monocrystalline silicon industry chain, focusing on the production of solar and semiconductor-grade monocrystalline silicon rods and wafers. It also specializes in the recovery and recycling of auxiliary materials, such as quartz crucibles, and offers silicon material cleaning and cutting fluid treatment services. The company has developed a competitive advantage in high-quality quartz crucible manufacturing, which supports the continuous drawing of large-sized monocrystalline silicon rods at high temperatures. With a robust research and development team, Inner Mongolia OJing holds numerous patents related to quartz crucible production processes and has established strategic partnerships with suppliers of high-purity quartz sand. The company aims to maintain stability in product and service quality, which is critical in the monocrystalline silicon industry, and is committed to becoming a solution service provider in the new energy sector.

1. Product quality advantages The company focuses on providing supporting products and services for the monocrystalline silicon industry chain. After years of industry accumulation, the company has a certain competitive advantage in the field of high-quality and large-sized quartz crucible manufacturing. Currently, the quartz crucibles produced by the company can support the demand for continuous drawing of large-sized monocrystalline silicon rods at high temperatures. The company controls product quality from the source and has established strategic partnerships with important domestic and foreign suppliers of high-purity quartz sand. The company has mature production technology and is at a high level in the industry in terms of product manufacturing process, equipment, and mold configuration. At present, the quartz crucibles produced by the company have high purity, strong resistance to crystallization, and good heat resistance. During high-temperature use, there is very little phenomenon of bubble rupture on the surface of the crucible, and a "bubble suppression layer" is formed on the innermost surface. Therefore, compared to quartz crucibles in the same industry, they can provide longer service time without affecting the purity of the silicon wafer, further increasing the number of crystal pulling rods. At present, the quartz crucible developed by the company can be used for over 500 hours, and the limit experiment has exceeded 600 hours. The particularity of the monocrystalline silicon industry chain objectively requires suppliers to maintain stability in product and service quality. Unstable product or service quality is highly likely to cause crystal failure, crystal rod scrap, and other situations, which can cause significant losses to downstream customers. Therefore, downstream customers tend to choose suppliers with long-term cooperation and guaranteed quality, and the company will continue to benefit from quality advantages. 2. Technical advantages During the R&D and production of quartz crucible products, silicon material cleaning services and Cutting fluid treatment services for many years, we have accumulated a large number of advanced production technologies and processes, and have a research and development team composed of many experienced technicians. The company has always maintained research on cutting-edge technologies in the industry. As of the end of 2023, the company has obtained a total of 158 patents, including 5 invention patents. In terms of quartz crucible business, the company has obtained patents covering processes such as quartz crucible product molding, melting, inspection, sandblasting, pickling, cleaning, drying, spraying, packaging, etc., achieving full production chain patent technology coverage. The company is the main drafting unit for multiple industry group standards, including "Quartz Crucibles for Photovoltaic Monocrystalline Silicon Growth", "Production Specification for Quartz Crucibles for Photovoltaic Monocrystalline Silicon Growth", "Production Specification for Quartz Crucibles for Semiconductor Monocrystalline Silicon Growth", and "Quartz Crucibles for Semiconductor Monocrystalline Silicon Growth". The company is one of the few manufacturers with the ability to mass produce large-sized quartz crucibles. The company has completed the research and development of 40 inch solar grade quartz crucibles and 32 inch semiconductor grade quartz crucibles, and has the ability to mass produce them; 36 inch solar grade quartz crucibles and 28 inch semiconductor grade quartz crucibles have been officially produced and supplied to downstream customers; In addition, the company has proposed a research and development plan for solar grade quartz crucibles above 40 inches. The research and development project for 42 inch solar grade quartz crucibles has successfully developed samples, providing forward-looking technical support and reserves for future layout of downstream large silicon wafer matching. In terms of silicon material cleaning, the company mainly processes and cleans silicon materials such as primary polycrystalline, double drawn polycrystalline, single crystal edge skin, single crystal head and tail, crucible base material, single crystal samples, etc., and adopts different processes according to different types of silicon materials. Through independent research and development and cooperation with equipment suppliers, the company has broken through key technological points such as silicon material sorting and crushing, and is committed to achieving fully automated and efficient production processes, reducing production costs. In terms of Cutting fluid treatment, the company has completed the business transformation from waste mortar treatment to diamond line Cutting fluid treatment, and has realized the online treatment and recovery of Cutting fluid with diamond line becoming thinner and thinner and silicon wafer becoming thinner. Based on the frequent technological changes in the monocrystalline silicon industry chain, the company's technological advantages will ensure the market share of its products and services. 3. Cost advantage The company has established in-depth cooperative relationships with major customers, and with the continuous increase in industry concentration of downstream major customers and the gradual implementation of expansion plans, it has gradually accumulated and formed a strong scale advantage, which is conducive to further reducing production costs and forming a scale effect. In terms of raw materials, the company has maintained a long-term strategic partnership with major global suppliers of high-purity natural quartz sand, effectively ensuring the long-term stable supply of key raw materials. Large scale procurement and stable supplier relationship ensure the company's Bargaining power for raw material procurement. At the same time, large-scale production is conducive to further reducing production costs and forming scale effect. In recent years, the company has gradually implemented automation construction, upgrading and transforming some processes of its main products and services. The company will continue to benefit from the aforementioned automation transformation process. For major customers, due to their proximity to the company's geographical location and low transportation costs, the packaging can be recycled and reused. For other customers, the company adopts methods such as selecting reasonable transportation methods and optimizing transportation routes to reduce transportation costs. 4. Advantages of multi business sector linkage The company is based on supporting products and services in the monocrystalline silicon material manufacturing industry, meeting the needs of various production links in the semiconductor industry and photovoltaic monocrystalline silicon wafer industry from multiple dimensions. At present, the company's business includes quartz crucible manufacturing, silicon material cleaning and Cutting fluid treatment, providing specialized and customized supporting solutions for single crystal silicon material manufacturers. The company extends from the photovoltaic field to the semiconductor field, and takes quartz products business as a starting point to develop silicon material cleaning and Cutting fluid treatment services. Each business sector utilizes its professional advantages to consolidate high-quality customer sources, and at the same time, customer resources and information resources are interconnected among various sectors, forming a radiation effect from point to area, and achieving the linkage development of comprehensive business for major customers.