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REN - Redes Energéticas Nacionais, SGPS, S.A. is a Portuguese utility company established in 1994, specializing in the transmission of electricity and natural gas. The company operates the National Electricity Transmission Grid and the National Natural Gas Transportation Grid, overseeing their planning, construction, operation, and maintenance. REN also manages a liquefied natural gas (LNG) regasification terminal in Sines, Portugal, facilitating LNG storage and transportation. Additionally, through its subsidiary Rentelecom, REN provides telecommunications services, including infrastructure management and fiber optic rentals. Headquartered in Lisbon, Portugal, REN's strategic role in managing critical energy infrastructure positions it as a key player in ensuring the country's energy supply stability.

Iberdrola SA, operating under the ticker IBE, is a multinational electric utility company primarily engaged in the production, distribution, and trading of electricity. The company operates across various sectors including renewable energy, networks, and liberalized markets, focusing on sustainable energy projects. Founded in 1992 and headquartered in Bilbao, Spain, Iberdrola has grown to be a leader in renewable energy, advocating for cleaner energy solutions worldwide.