Where are the four major photoresist manufacturers in China?

The company is a high-tech enterprise specializing in research and development, production and sales of microelectronic chemicals. Its leading products include ultra-clean and high-purity reagents, photoresists, functional materials, lithium battery materials and basic chemical materials.

The company's main high-quality customer resources include R&D Semiconductor, Jingao Technology, Sanan Optoelectronics, Hong Chen Optoelectronics, Xinli and China Resources Shang Hua. Semiconductor customers have the highest requirements for ultra-clean and high-purity reagents. The company's flagship product, hydrogen peroxide, has entered the supply chain inspection system of well-known domestic semiconductor manufacturers, among which Hua Hong Li Hong has entered the online evaluation, Wuhan Xinxin has entered the factory inspection and audit, and SMIC is carrying out technical confirmation.

Second, the core source micro:

Products include coating and developing equipment (coating/developing machine, glue spraying machine) and monolithic wet equipment (cleaning machine, glue remover, wet etching machine) in lithography process.

Downstream customers cover major domestic LED chip manufacturers and advanced packaging enterprises after integrated circuit manufacturing, and maintain long-term and stable cooperative relations with many high-quality customers including TSMC, Changdian Technology, Huatian Technology, Tongfu Microelectronics, Fang Jing Technology and Huacan Optoelectronics.

Third, Chinachem Technology:

The company shares in Xuzhou Bokang by way of investment. The company is a major enterprise that produces high-end photoresist monomer in China, and is an international advanced inventor and producer of EUV photoresist monomer. Monomer products cover more than 90% of the global customer base, and downstream customers include Intel and JSR.

The company's main production equipment comes from advanced machinery manufacturing countries such as Japan, Germany, Switzerland and France. In OPW, the one-step airbag product and cutting production process are intelligent, which is at the advanced level in the same industry in China, providing a guarantee for improving production efficiency and maintaining product quality stability.

Four, the new materials:

Tongcheng Electronics, a wholly-owned subsidiary of the Company, acquired 33.70% equity of Kehua Microelectronics. Established in August 2004, Beijing Kehua Microelectronics is the only photoresist enterprise in China with Dutch ASML exposure machine, a Sino-foreign joint venture integrating R&D, photoresist production, testing and sales, and the only national high-tech enterprise with independent R&D and high-grade photoresist production capacity in China.

The company successfully developed the technology of using paraformaldehyde to produce functional resin, which replaced the traditional liquid aldehyde process, reduced 70% phenolic wastewater and solved the problem of difficult treatment of phenolic wastewater in the production of phenolic resin for rubber.