Controversies

Central Ecological Inspection Flags Data Fabrication in Huaneng System

The Third Round Central Sixth Ecological and Environmental Protection Inspection Team provided feedback to China Huaneng Group, pointing out fabrication problems within the system, including artificially evading excessive emissions, falsely marking the operating status of online monitoring equipment, and artificially creating the illusion of invalid data. The group must formulate a rectification plan and complete rectification within a deadline; Huaneng Power International is the core listed platform of Huaneng Group.

Multiple Affiliated Power Plants Repeatedly Penalized for Environmental Violations Without Disclosure

In May 2021, Eco China Net and China Economic Net reported that several controlled power plants under Huaneng Power International received administrative penalties from local ecological and environmental departments for excessive air pollutant emissions, illegal wastewater discharge, lack of coal yard dust prevention and control, incomplete environmental procedures, and other issues, but the company did not fully disclose these in its periodic reports. In 2025, National Business Daily and other media reported again that a Huaneng Power International controlled company was fined for excessive ammonia nitrogen and other concentrations. This has raised questions about its environmental information disclosure.

Huaneng Power International subsidiary fined for environmental violation

Fine or penalty

Huaneng Yunnan Diandong Energy Co., a subsidiary of Huaneng Power International, was ordered to correct an environmental violation and fined CNY 320,000 after starting construction of a coal-mine project without approval of its environmental impact assessment documents. The source says the penalty information was disclosed on 2021-06-01.