What is postage required for letter from Texas to Hong Kong?

Answer 1

This would depend on the package size and the class used to post the item(s)

See (Cheapest)

http://postcalc.usps.gov/

UPS and Fedex are expensive

As of Mar 16 2011, 7 pounds at UPS to HK costs $167, $58 USPS priority mail at custom box.

Answer 2

http://postcalc.usps.gov/default.aspx?Mode=Intl_Single&CID=10189

Answer 3

$1.05 for under one ounce (2012)