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Dynex Power Inc., through its subsidiary, Dynex Semiconductor Limited, designs, manufactures, and sells industrial power equipment worldwide. The company's products include high power bipolar discrete semiconductors, high power insulated gate bipolar transistor modules and dies, and high power electronic assemblies and components. Its products are used by electronic equipment manufacturers and maintenance providers in various sectors, including railway propulsion and on-board systems; industrial electric power transmission and distribution, renewable and distributed power, heavy industries, and factory automation; marine propulsion and on-board systems; aircraft power electronic systems; and electric vehicles. The company was founded in 1956 and is based in Kanata, Canada. Dynex Power Inc. is a subsidiary of Zhuzhou CRRC Times Electric Co., Ltd.

PTK Acquisition Corp. does not have significant operations. It focuses on entering into a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization, or other similar business combination with one or more businesses or entities. The company was incorporated in 2019 and is based in Los Angeles, California.

So-Young International Inc. operates an online platform for consumption healthcare services in the People's Republic of China. The company offers So-Young Mobile App that offers users medical aesthetic knowledge and experience to reach an informed medical aesthetic treatment decision and make reservations for treatment with medical professionals and medical aesthetic institutions; So-Young Beauty which provides similar interfaces and functions as the mobile app, as well as serves as additional access points to the platform; and medical aesthetic community content through its website soyoung.com. It provides content in various media formats on its online platform generated by users, including professional generated, content from in-house editorial team that shares opinions on specific new medical procedures and trends; user generated content comprising Beauty Diaries that provides details about medical institution, doctor, price, and other information on the treatment; professional user generated, contents from the medical aesthetic influencers; and doctor generated, content from doctors to generate knowledge. In addition, the company offers consumption healthcare services, including dermatology, dentistry and orthodontics, physical examinations, gynecology, and postnatal care; reservation services; and software as a service. Further, it engages in research and development, production, sales, and agency of laser and other optoelectronic medical beauty equipment; manufacture and sells light therapy device, surgical laser device and other equipment; internet information and technology advisory; online medical treatment and consultation; management consulting; internet culture; micro finance services, as well as sells cosmetics products. The company was founded in 2013 and is headquartered in Beijing, China.

exactEarth Ltd. provides maritime vessel data for ship tracking and maritime situational awareness solutions worldwide. It offers exactAIS, a data service that provides access to the automatic identification system (AIS) messages captured by the exactView satellite constellation; exactAIS Archive, which gives customers access to the satellite AIS historical data; and exactEarth ShipView, a web-based viewing tool that allows users to see all the ship positions. The company also provides exactAIS Geospatial Web Services that allows access to live and historical vessel data; exactAIS Density Maps, which delivers vessel pattern analysis by transforming AIS messages into individual geospatial data points; exactTrax that racks fishing boats and small commercial vessels; exactView RT, real-time global satellite-AIS service; and exactAIS Insight, which combines a robust analytics engine with the comprehensive vessel movement dataset. Its products are used in the defense and security, search and rescue, fleet management, financial services, oil and gas, logistics and supply chain, illegal fishing, global vessel monitoring, and environmental protection applications. The company was formerly known as COM DEV Space Systems Ltd. and changed its name to exactEarth Ltd. in June 2009. exactEarth Ltd. was incorporated in 2006 and is headquartered in Cambridge, Canada.