National competition. Guangdong, Hong Kong and Macao National Applied Mathematics Center was established by a provincial unit, an enterprise and a national unit, but it is stamped with the seal of Guangdong Mathematical Society. Greater Bay Area Cup is an important online literature competition initiated by Shenzhen Writers Association on 20 18. The competition is a national competition, which aims to promote the development of regional country studies and help the country cultivate comprehensive and compound talents.