How to prosper when life gives you lemons

When is a lemon not just a lemon? Well, in Tongnan, a district of Southwest China's Chongqing, it can become anything from fruit tea to a facial mask to essential oils once it hits the production line.

China is not traditionally grower of lemons, but Tongnan dominates the domestic market with nearly 100 processed lemon products that it exports to about 30 countries.

More than 40,000 families are involved in planting 13,000 hectares of lemons in the district at present, with plans to have 30,000 hectares of lemon groves generating 30 billion yuan ($4.3 billion) of revenue by 2020.