Transatlantic Agency’s co-agent for Thailand is:

The Grayhawk Agency

Gray Tan
The Grayhawk Agency
14F, 63, Sec.4, Xinyi Rd., Taipei, 10684 Taiwan
886-2-27059231
886-2-27059610 (fax)

Learn more at: https://www.publishersmarketplace.com/members/Grayhawk/