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Euro Tech Holdings Company Limited primarily distributes water treatment equipment, laboratory instruments, analyzers, test kits and related supplies, and power generation equipment to commercial customers, and governmental agencies in Hong Kong and the People's Republic of China. The company operates in two segments, Trading and Manufacturing, and Engineering. It sells analytical instruments, such as spectrophotometers, colorimeters, chromatographs, mass spectrometers, flow injector analyzers, automated sample preparation workstations, and atomic spectrometers; environmental monitoring instruments comprising air and water quality monitoring instruments; sample pre-treatment equipment; and general-purpose laboratory instruments consisting of water quality monitoring and analysis equipment. The company also distributes general testing and measuring equipment comprising multi-channel digital and analogue recorders, signal amplifiers, and calibration equipment for energy conservation, renewable energy equipment, power quality analyzers, and continuous emissions monitoring systems; and air pollution control systems to power plants, railway and aero-space industries, utilities, educational institutions, and telecommunications companies. In addition, it offers process control systems, including sensors, temperature and pressure gauges, power and energy consumption meters, flow meters, valves, temperature and pressure transmitters and control devices, and temperature and pressure calibrators, as well as moisture, power, energy, and harmonic analyzers; systems engineering services; and maintenance, installation assistance, and calibration services. Further, the company distributes programmable logic controllers, telemetry units, and supervisory control and data acquisition systems and software. Euro Tech Holdings Company Limited was founded in 1971 and is headquartered in Hong Kong, Hong Kong.

LiqTech International, Inc., a clean technology company, designs, develops, produces, markets, and sells automated filtering systems, ceramic silicon carbide liquid applications, and diesel particulate air filters in the United States, Canada, Europe, Asia, and South America. It operates in three segments: Water, Ceramics, and Plastics. The company manufactures and sells silicon carbide ceramic filtration technologies for liquid and gas purification; and diesel particulate filters for exhaust emission control solutions to the verified retrofit and the original equipment manufacturer market. In addition, it develops, manufactures, and sells liquid filtration systems, which are used for the marine scrubber systems, filtration of produced water, industrial applications, pool and spa water, food and beverage application, and silicon carbide membrane technology. Further, the company manufactures machined and welded plastic parts. LiqTech International, Inc. sells its products primarily to industrial customers through direct sales, systems integrators, distributors, agents, and partners. The company was formerly known as Blue Moose Media, Inc. and changed its name to LiqTech International, Inc. in October 2011. LiqTech International, Inc. was founded in 2000 and is headquartered in Ballerup, Denmark.

Presidio is an internally managed, diversified REIT with holdings in model home properties which are triple-net leased to homebuilders, office, industrial, and retail properties. Presidio's model homes are leased to homebuilders located in Arizona, Illinois, Texas, Wisconsin, and Florida. Our office, industrial and retail properties are located primarily in Colorado, with properties also located in Maryland, North Dakota, Texas, and Southern California. While geographical clustering of real estate enables us to reduce our operating costs through economies of scale by servicing several properties with less staff, it makes us susceptible to changing market conditions in these discrete geographic areas, including those that have developed as a result of COVID-19. Presidio owns approximately 6.5% of the outstanding common stock of Conduit Pharmaceuticals Inc., a disease agnostic multi-asset clinical-stage disease-agnostic life science company providing an efficient model for compound development.

WISeKey International Holding AG, a cybersecurity company, provides integrated security solutions in Switzerland, rest of Europe, the Middle East, Africa, North America, the Asia Pacific, and Latin America. The company operates in two segments, IoT and Managed Public Key Infrastructure (mPKI). It offers microcontrollers that provides identity to various connected devices; and mPKI, which include digital identity, certificate management and signing solutions, and trust services, as well as offers digital certificates; software as a service, including cloud-based certificate life-cycle-management and signing and authentication solutions; software licenses; post-contract customer support for cybersecurity applications; and infrastructure hosting and monitoring services. The company also develops, markets, hosts, and supports a range of solutions that enable secure digital identification of people, content, and objects by generating digital identities through its products and services in cybersecurity services, IoT, digital brand management, and mobile security, which enable clients to monetize their existing user bases, as well as expand its eco-system. In addition, it engages in financing, sales, and distribution activities; and sells semiconductors secure chips. The company was founded in 1999 and is headquartered in Zug, Switzerland.