Key industries and those requiring huge capital are usually established as

Key industries and those requiring huge capital are usually established as public corporations. Public corporations are companies that are owned and operated by the government or by the public through the purchase of shares of stock. They are typically created to serve the public interest, and they often operate in industries such as energy, transportation, and telecommunications. Public corporations are often established with a significant amount of government funding or support, and they are typically subject to government regulation and oversight. In simple terms, a public corporation is a business that is owned by the public, usually created to provide essential services to the community, and requires significant capital to operate.