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BlueCity Holdings Limited operates a platform for LGBTQ community primarily under BlueCity brand in the People's Republic of China, India, South Korea, Thailand, and Vietnam. The company operates Blued, Finka, and LESDO mobile applications that offer mobile-based social and entertainment services, including live streaming, advertising, membership, merchandise sales, and other services. It also offers online health services. BlueCity Holdings Limited was founded in 2000 and is based in Beijing, China.

Data I/O Corporation, together with its subsidiaries, engages in the design, manufacture, and sale of programming and security deployment systems and services for electronic device manufacturers in the United States, Europe, and internationally. Its programming system products are used to program integrated circuits (ICs) with the specific data necessary for the ICs. The company offers PSV handlers off-line automated programming systems, such as PSV2800 automated programming system which focuses on high-volume manufacturing in a lower cost platform; PSV7000 automated programming system, for security deployment upgrades; PSV5000 automated programming system that combines mid-range capacity and supports security deployment; and PSV3500 automated programming system which provides basic programming needs. It also provides SentriX security deployment system; and non-automated LumenX and FlashPAK III programming systems. In addition, the company offers hardware support, system installation and repair, and device programming services. It markets and sells its products to original equipment manufacturers in automotive and consumer electronics, internet of things, and industrial, as well as electronic manufacturing service contract manufacturers through direct sales, and indirect sales representatives and distributors. Data I/O Corporation was incorporated in 1969 and is headquartered in Redmond, Washington.

Frequency Electronics, Inc., together with its subsidiaries, engages in designing, development, and manufacturing of precision time and frequency control products and components for microwave integrated circuit applications. It operates through two segments, FEI-NY and FEI-Zyfer. The FEI-NY segment offers precision time and frequency control products for communication satellites, terrestrial cellular telephone or other ground-based telecommunication stations; and other components and systems for the U.S. military; and provides design and technical support for satellite business. FEI-Zyfer segment offers global positioning system technologies to systems and subsystems for secure communications, both government and commercial, and other locator applications; and engages in sale and support of wireline telecommunications products, including US5G. It markets its products directly and through independent sales representative organizations located in the United States, Europe, and Asia. Frequency Electronics, Inc. was founded in 1961 and is headquartered in Mitchel Field, New York.

inTEST Corporation provides test and process technology solutions for use in manufacturing and testing in automotive, defense/aerospace, industrial, life sciences, security, and semiconductor markets worldwide. The company operates through three segments: Electronic Test, Environmental Technologies, and Process Technologies. The Electronic Test segment offers in2, Cobal, and LS series manipulators that hold various test heads and enable an operator to reposition a test head for alternate use with various probers or handlers on a test floor; and docking hardware products, which protect the interface contacts and ensure proper repeatable and precise alignment between the test head's interface board and the prober's probing assembly. This segment also provides tester interfaces that offer electrical connections between the tester and the wafer prober or IC handler; scorpion flying probe test systems that designs and manufactures robotics-based electronic test equipment; and BRiZ automated test and programming services. Its products are used in production testing of wafers and specialized packaged ICs in back-end testing by semiconductor manufacturers. The Environmental Technologies segment provides ThermoStream products that are used in the semi market as a stand-alone temperature management tool, or in various electronic test applications; thermal chambers; thermal platforms; Thermonics temperature conditioning products that offer tempered gas or fluid; and ultra-cold storage solutions, including biomedical freezers, refrigerators, and mobile storage solutions. The Process Technologies segment offers EKOHEAT and EASYHEAT induction heating systems; and digital streaming and image capturing solutions. The company markets and sells its products to semiconductor manufacturers, third-party foundries, test and assembly providers, and original equipment manufacturers. inTEST Corporation was incorporated in 1981 and is headquartered in Mount Laurel, New Jersey.