A senior visitor enjoys walking on a treadmill at the 6th China International Senior Services Expo in Beijing, Aug 4, 2017. [Photo/VCG]

In China, more than 230.8 million people, or 16.7 percent of the total population, were aged 60 or above at the end of 2016, according to a report released by the Ministry of Civil Affairs. Among this group, about 150.03 million people were 65 or above.

Over 220 companies and organizations from about 20 countries gathered to tap the sector in Beijing at the 6th China International Senior Services Expo from Aug 4 to 6. The event showcased health products targeted at senior citizens.