Geneticist Zhang Huarong walks through the forest near his Hong Kong research lab, gesturing towards a rotting incense tree ...

A stone’s throw from the city’s urban centre are forests that are home to trees that produce fragrant – and valuable – agarwood, used in a number of high-end products from incense and ...

A stone's throw from the city's urban centre are forests home to trees that produce fragrant -- and valuable -- agarwood, used in a number of high-end products from incense and perfume to ...