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Ballard Power Systems Inc is engaged in design, development, manufacture, sale and service of proton exchange membrane ("PEM") fuel cell products for a variety of applications, focusing on power products for bus, truck, rail, marine, stationary and emerging market (material handling, off-road and other) applications, as well as the delivery of services, including technology solutions, after sales services and training. A fuel cell is an environmentally clean electrochemical device that combines hydrogen fuel with oxygen (from the air) to produce electricity. Key geographical revenue is derived from Poland followed by United States, United Kingdom, and other countries.
Tekla World Healthcare Fund is a diversified closed-end management investment company. Its investment objective is to seek current income and long-term capital appreciation through investments in U.S. and non-U.S. companies engaged in the healthcare industry. The company's investment portfolio comprises investments in different sub-sectors such as pharmaceuticals and biotechnology, healthcare providers and services, real estate investment trusts, medical devices and diagnostics, and other areas. It also male into REIT Real Estate.