Because there is no city outside Sichuan that doesn't take IELTS, IELTS outside Sichuan is also taken.

IELTS generally refers to the international English language testing system. IELTS, referred to as the International English Language Testing System, is one of the famous international English standardized proficiency tests. The IELTS test was established in 1989 and is jointly managed by the British Council for Cultural Education, the Cambridge University Examinations Board and the Australian Education International Development Agency (IDP).