Hello, Surabaya Qingming netizen! There is no saying that the teacher qualification certificate is renewed. You want to apply for the primary school mathematics teacher qualification certificate, which is basically the same as the primary school computer teacher qualification certificate you applied for at that time. You can log on to the "Qualification" column of the website of Huai 'an Education Bureau to inquire about "201Huai 'an Teacher Qualification Examination Instructions" or consult the relevant county (district) Education Bureau. thank you