(1) No business owner shall award a contract for any of the following work, deemed hazardous or dangerous to the safety and health of employees, and have employees of a contractor conduct such work at his or her place of business:
1. Plating work;
2. Smelting, injecting, processing, and heating mercury, lead, or cadmium;
3. Manufacturing or using substances subject to permission prescribed in Article 118(1).
(2) Notwithstanding paragraph (1), a business owner may award a contract for any work prescribed in the subparagraphs of paragraph (1) and have employees of a contractor conduct such work at his or her place of business in any of the following cases:
1. Where a business owner awards a contract for such work temporarily or intermittently;
2. Where the technology possessed by a contractor is professional and indispensable for the operation of business by a business owner (referring to a business owner as a contractee who has awarded a contract to a contractor) and approval of the Minister of Employment and Labor is obtained.
(3) Where a business owner intends to obtain approval from the Minister of Employment and Labor pursuant to paragraph (2)2, he or she shall undergo an evaluation on safety and health conducted by the Minister of Employment and Labor, as prescribed by Decree of the Ministry of Employment and Labor.
(4) The effective period of approval referred to in paragraph (2)2 shall be determined to be a period of up to three years.
(5) Where a business owner applies for an extension of the effective period of approval referred to in paragraph (4) upon its expiration, the Minister of Employment and Labor may grant approval to extend such effective period by up to three years from the date following the expiration of the effective period, as prescribed by Decree of the Ministry of Employment and Labor. In such cases, the business owner shall undergo an evaluation on safety and health under paragraph (3).
(6) Where a business owner intends to change any of the matters prescribed by Decree of the Ministry of Employment and Labor, among the matters approved under paragraph (2)2 or (5), he or she shall obtain approval for such change, as prescribed by Decree of the Ministry of Employment and Labor.
(7) Where any person who has obtained approval, approval for extension, or approval for change pursuant to paragraph (2)2, (5), or (6) ceases to meet the standards prescribed in paragraph (8), the Minister of Employment and Labor shall revoke the relevant approval, approval for extension, or approval for change.
(8) The standards, procedures, and methods for approval, approval for extension, or approval for change prescribed in paragraph (2)2, (5), or (6), and other necessary matters shall be prescribed by Decree of the Ministry of Employment and Labor.