Adrian Cheng Chi-kong, former heir apparent to Hong Kong’s New World Development (NWD), is expanding his K11 cultural retail business in mainland China. His K11 by AC Group, in partnership with state-owned Xiamen Rail Transit Group, launched Xiamen K11 Select on September 22. The project has since attracted over 2 million visits, with sales rising 32% week on week, according to a statement on Monday.