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CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND operates as a closed-end management investment company. Its investment objective is to provide total return through a combination of capital appreciation and current income. The Fund invests in convertible securities and high-yield securities.
Enviri Corp engages in providing a broad range of environmental services and related solutions. The company's current operations consist of three divisions: Harsco Environmental, Harsco Rail, and Clean Earth. The company serves a diverse customer base by offering critical recycle and reuse solutions for their waste streams, enabling customers to address their complex environmental challenges.