Buy. According to the inquiry of official website directly hired by Boss, PetroChina Kunlun Gas Sichuan Branch will start to pay five insurances and one gold after the employee internship, so it will buy five insurances and one gold. Five insurances and one gold refer to several kinds of security benefits provided by employers, including basic old-age insurance, basic medical insurance, unemployment insurance, industrial injury insurance, maternity insurance and housing accumulation fund.