What is "struan's"

The Struan family and their company Struan's (also called the Noble House) is a fictional family featuring heavily in many of the Asian Saga novels by writer James Clavell. The family plays an important role in the novels Tai-Pan, Noble House, Gai-Jin, and Whirlwind. Tai-Pan is the first book about the Struan family, although it is preceded by Shōgun in the Asian saga.

The Struan family begins its journey with the story of Dirk Struan, a trader of opium and other goods between China and England. Dirk is the founder of the Noble House and plays a major role in establishing Hong Kong.

The fictional Struan family is based on the historical Jardine family of Jardine-Matheson fame, and hails from Ayr, Scotland.