Does Qi Lin Electric Power Engineering Company belong to the Power Supply Bureau?

Don't belong. The Power Supply Bureau is an organization integrating government and enterprise. Qi Lin Electric Power Equipment Co., Ltd. now produces composite insulators for electrified railways, power grids below 750KV and high and low voltage distribution devices below 35KV. This institution is an enterprise in nature and does not belong to the integration of government and enterprise, so it does not belong to the power supply bureau.