China’s annual export for hearing aids was around 14 million units in 2022, with a total export value of approximately US$350 mn [28]. From 2018 to 2022, the market size increased 7 per cent year-on-year [29]. The top 5 global hearing aid suppliers (Demant A/S, GN Group, Sonova, Starkey and WS Audiology), which totally account for over 90 per cent of the global market share, all have China as one of their key manufacturing hubs.