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Weifa ASA engages in the development, production and sales of medicines and other health products. Its products include medicines for pain relief, cough and cold, nutraceuticals, and dermatology. The company was founded by Olaf Weider in 1940 and is headquartered in Oslo, Norway.

Weifa AS operates as a pharmaceutical company. The firm supplies non-prescription, over the counter medicines, and lifestyle products. It offers medicines for pain, fever, muscle and joint, colds, wound, as well as vitamins, minerals, and prescription products. The company was founded by Olaf Weider in 1940 and is headquartered in Oslo, Norway.

REC Silicon Inc. produces solar grade polysilicon and silane gas and electronic grade polysilicon. Rec Silicon Inc. operates as a subsidiary of Renewable Energy Corporation ASA. The company was founded in 2002 and is headquartered in Moses Lake, WA.

Part of BEWI Invest AS, Jackon Holding AS is an investment holding Norwegian company. The company is based in Gressvik, Norway. The company was founded in 2005. Hege Buer has been the CEO of the company since 2020. Jackon Holding was acquired by Bewi ASA on October 19, 2022 for $412.41 million.

Norsk Gjenvinning Norge AS provides waste management and recycling service for businesses, public sectors, and private households. It offers customized solutions for separation, collection, handling, and processing of all types of waste. The company was founded by Adolf Jahr in 1926 and is headquartered in Lysaker, Norway.

REC Solar ASA operates as a holding company that engages in the provision of solar energy solutions. It develops and manufactures solar panels, solar power systems, and products and services related to renewable energy sources. It also offers project development, financing, turnkey solutions, and other services. REC Solar was founded on July 15, 2013 and is headquartered in Skøyen, Norway.

Part of REC Silicon ASA, REC Wafer Norway AS is a Norwegian company that provides electric and other services combined.

REC Silicon AS develops, manufactures, and sells silicon materials. It offers polysilicon and silicon gases for the solar and electronics industry. The company was founded on September 15, 2001 and is headquartered in Lysaker, Norway.

Hæhre & Isachsen Holding AS engages in investment activities. The company was founded on October 12, 2015 and is headquartered in Vikersund, Norway.

Nordsilmel AS supplies protein and lipids. The private company is based in Bergen, Norway.

Pos Holding AS functions as an investment holding Norwegian company and provides road freight transportation services. The private company is located in Norway.

BetonmastHæhre AS operates as a construction company. It performs all types of building and construction assignments. The company was founded in 2017 and is headquartered in Oslo, Norway.