- Issue a written contract after signing a contract

  - Determination of subcontracting payments by rational unit price estimation method, such as raising raw material prices, changing exchange rates, and reflecting factors of price increase

  - Prohibition of unfair reduction activities, etc.

  - Secure specificity, transparency, and fairness for selection (registration) and cancellation criteria of partner companies

  - Pre-disclosure of procedures, and results for selection(registration) and cancellation criteria of partner companies

  - Equitable opportunities for registrants, etc.

  - Formation of an internal review committee for subcontracting transactions

  - Preliminary deliberation on contracts and pricing over a certain scale

  - Deliberation on the adequacy of the criteria and procedures for registering and canceling suppliers

  - Compliance with matters related to issuance and preservation of various documents in the course of subcontractingCompliance with matters related to issuance and preservation of various documents in the course of subcontracting