different business scope, different registered funds.

1. According to the query of Aiqi, the business scope is different: Huaneng is mainly engaged in comprehensive energy business, including power generation, supply and sales, and also involves the development and operation of energy resources such as coal, oil and natural gas, while Huadian is mainly engaged in power generation, supply and sales, covering power generation in various energy forms such as thermal power, hydropower and nuclear power.

2. The registered funds are different: Huaneng's registered capital is 58 million, while Huadian's capital is 52 million.