The materials required for the self-employed to be converted into a limited company include: application for registration of the limited company, articles of association, identity cards of shareholders and supervisors, identity cards of operators (legal representatives), notice of approval of enterprise name, and notice of cancellation of self-employed persons. The materials required for the self-employed to be transformed into a partnership enterprise include: application for partnership, partnership agreement, partner ID card, confirmation of partner's subscribed or paid-in capital contribution, notice of approval of partnership enterprise name, notice of cancellation of self-employed and other related materials. Materials required for the transformation of self-employed individuals into sole proprietorship enterprises: application form for sole proprietorship enterprises, investor's ID card, notice of approval of sole proprietorship enterprises, notice of cancellation of sole proprietorship enterprises, and other relevant materials. Step 4: Self-employed individuals turn into enterprises, and self-employed individuals turn into enterprises for approval and registration. What kind of enterprise should the self-employed become? Submit relevant information. After the approval of the industrial and commercial department, they will issue the business license of the enterprise, and at the same time, they will also issue the certificate that the self-employed individuals have been transformed and upgraded into enterprises. Self-employed individuals turn into enterprises to complete.