Who is May-may from Tai-Pan and what is their importance?

May-may is the Chinese mistress of Dirk. According to custom, he purchased her. She lives in Macao with their two children until a price is put on their heads, at which time Dirk has her and the children picked up by the Silver Cloud. She is aboard the ship near Whampoa when the war with China is taking place. May-may is a good source of information for Dirk but never tells him that she is Jin-qua's granddaughter. She is loyal to Dirk and helps him hide and receive the bullion shipment.