Features Editors: Hong Kong: Sean Gleeson +852 2829 6249 Paris: Kate Millar +33 1 4041 4636 China faces a fast-ageing population and a shrinking workforce after decades of a one-child policy, with retirees forecast to make up a third of the country's population by 2050, and elderly care expected to cost a quarter of annual GDP. This demographic challenge has put pressure on working children to care for two sets of parents, but urbanisation, long working hours and high property prices -- plus changing mindsets among many younger Chinese -- makes pairing tradition with modernity a challenge. We are offering the following items: China-social-economy-ageing,FEATURE RUGAO, China Gu Bin leans over a desk as he carefully adds strokes to the Chinese character for "fortune", before signing off in a flourish with his age -- 104. He is five years younger than the oldest member of the community in Rugao, an eastern city home to over 500 centenarians which may have lessons for China's ageing future. 1,100 words by Helen Roxburgh and Qian Ye. Picture. Video China-social-economy-ageing-technology,FOCUS BEIJING Grandmas are sharing their lifestyles with millions of Chinese social media fans as an unlikely 'grey-haired' legion of women influencers with money, education -- and no shortage of wisdom -- captivate China's internet. 650 words by Danni Zhu. Picture. Video China-social-economy-ageing,Q&A BEIJING The number of retirees in China is set to rocket to around a third of the population, meaning fewer workers and more dependents -- a demographic time bomb for the world's second largest economy. 500 words by Helen Roxburgh afp