Whether it is necessary to pay for the second class of the second construction project varies from place to place. There is no fixed pattern for the cost of continuing education for secondary builders. Usually, the cost of continuing education for applying for a license is borne by the license company. Before continuing education, you'd better negotiate with the other party, whether the expenses should be paid in advance or reimbursed later, invoice first, and then reimbursed by the other company. The cost of continuing education for the second construction project is about10.5 million yuan. In a word, there is no fixed and unified mode for the cost of continuing education, and the individual and the certificate-using unit negotiate and adopt a payment method that is convenient for themselves and the other company.