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SPSEMI Electronics is a production supplier mainly engaged in the research and development, production and sales of overvoltage and overcurrent protection devices. The main products are:TVS/transient suppression diode, BPSS/BlueBaby surge suppressor, ESD/electrostatic protector, S.E. T/surge electrostatic silicon suppressor, Thyristor/semiconductor discharge tube, Star Filter/Star Filter, PPTC/self-recovering fuse, GAS TUBE/ceramic gas discharge tube, SPARK GAP/glass discharge tube and other series, and have sufficient inventory to provide customers with timely supply timeliness

Ymin (Yongming) is a professional electronic components manufacturer based in Shanghai, focusing on the research and development, production and sales of high-quality capacitors. The company has become one of the well-known capacitor suppliers in the industry. The main product lines include aluminum electrolytic capacitors, film capacitors, tantalum capacitors, ceramic capacitors and super capacitors.

Wuxi Xinjieneng Co., Ltd. was established in 2013 and focuses on the research and development, design and sales of semiconductor chips and power devices such as MOSFETs and IGBTs. The main product lines include MOSFETs, IGBTs and integrated power devices.

Founded in 1990, UTC Group focuses on the research and development, design, manufacturing, packaging, testing and marketing of analog ICs and discrete components, ensuring technological autonomy and capacity guarantee through the vertical integration strategy of IDM resources. The main product lines include analog ICs and discrete devices.

Fujian Longxia Electronic Technology Co., Ltd. is a semiconductor technology enterprise supported by Fujian Province and the first integrated circuit design and packaging testing enterprise in Longyan City. It has world-class and domestically leading power device chip research and development capabilities, as well as high-tech enterprises in packaging manufacturing and chip sales. The company's R & D team currently has 1 doctorate and 4 master's degree. In 2018, the company was selected into the sixth batch of "Hundred Talents Plan" corporate innovation teams from Fujian Province. The company's headquarters is located in Longyan National Economic and Technological Development Zone (High-tech Zone), Fujian Province, covering an area of 1500 square meters. It has a power device chip CP test and purification workshop and a finished product test laboratory. It has offices in Shanghai and Shenzhen serving the southern and eastern markets. It has formed strategic cooperation with well-known wafer fabs at home and abroad in terms of wafer foundry, especially in the import substitution of SGT MOS and LOW VF trench SBD (TMBS). Fujian Longxia Electronics R & D team is committed to the research and development of new power device products in the fields of power lithium battery protection, new energy vehicle electronics, consumer electronics, power tools and other fields. The main types of power device chips sold include MOSFET and SBD chips, providing 6-inch and 8-inch wafers, and finished products in different packaging forms.

Shuokai Electronics Co., Ltd.(stock code: 839612) was founded in 2004 and is headquartered in Shenzhen Special Economic Zone. The company always adheres to the business and service tenet of "being based on morality, mutual benefit and win-win", focusing on product protection needs such as electronic/power equipment, security equipment, communication equipment, transportation equipment, automotive electronics, calculators and peripherals, consumer electronics and power modules. Continue to innovate and provide circuit protection devices and circuit protection solutions that can be integrated by partners, helping engineers enhance product protection levels, improve product quality and market reputation.

Hunan Xiangyi Electronic Technology Co., Ltd. is located in the Economic Development Zone of Xiangxiang City, Hunan Province. It is one of China's leading research and development and manufacturing bases for civil tantalum capacitors, committed to technological innovation and quality improvement. The main product lines include highly reliable niobium oxide capacitors, polymer tantalum capacitors and manganese dioxide tantalum capacitors.

Shenzhen Jingyang Electronics Co., Ltd. was established in 2006. It adheres to the business philosophy of "reputation based, quality first, and customer first". In 2022, it will be awarded the title of "Little Giant" in Shenzhen's specialization and innovation. The company focuses on IC design, production, sales and system integration. Its main products include ESD, TVS, MOS transistors, transistors, power management chips, LDO series and LEDs.

Quanxin Electronic Technology (Shenzhen) Co., Ltd. was established in 2005 and was jointly founded by senior "overseas returnees" overseas students from the European and American IC industry with profound theoretical knowledge and rich practical experience. It mainly produces analog and radio frequency integrated circuit products such as power management, LED lighting and display drivers, wireless communications, high-speed data interfaces and optical fiber communications, and provides application-specific integrated circuit (ASIC) design services.

Shenzhen Jinrui Electronic Materials Co., Ltd.(referred to as Jinrui Company) was established in 2002. It is a national-level high-tech enterprise focusing on the research and development, production and sales of polymer PTC (PPTC). The main product lines include plug-in PPTC self-restoring fuses, conventional surface mount PPTC self-restoring fuses, low-resistance surface mount PPTC self-restoring fuses, ring PPTC self-restoring fuses and strip PPTC self-restoring fuses.

Huizhou City Darong Electronic Technology Co., Ltd. was established in 2011. It specializes in the research and development, production and sales of line protection components (PPTC) products. It is one of the few suppliers in the world that master the core technology of polymer protection components.