- A letter of application requesting access to key capacity, indicating the volume of coal consumption in 2027, broken down by month.

- A document confirming the status of the energy‑producing organization.

- The organization’s charter.

- An order appointing the head.

- Bank details on the company’s letterhead, certified by the organization’s signature and seal.

- A certificate of registration for VAT purposes.

- A certificate of state registration of the legal entity (current extract)