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M-Tron Industries Inc is a diversified holding company with subsidiaries engaged in designing, manufacturing, and marketing high-engineered, high-reliability frequency and spectrum control products used to control the frequency or timing of signals in electronic circuits in various applications. The company's serving markets are aerospace and defense, space, and avionics. The company offers products such as microwave and millimeter wave filters; cavity, crystal, ceramic, lumped element, and switched filters; crystal resonators, integrated microwave assemblies, and solid-state power amplifier products.
Roma Green Finance Ltd is principally engaged in the provision of ESG, corporate governance and risk management as well as sustainability and climate change-related advisory services. The company works closely with its clients to help them understand, identify, manage, and overcome various business matters arising from such factors related to ESG, sustainability and climate change. Geographically, the company generates its revenue from Hong Kong and Singapore.