When I traveled the Peruvian Amazon region five years ago, I found the sweet Guabilla bean in a local market and took some seeds to Thailand. My tallest Guabilla tree (Inga marginata) is now about seven or eight meters high in Pattaya, another one is in Nong Khai, close to Laos. We have now Guabilla trees for sale in Thailand and Laos.
The seeds of the Guabilla tree cannot be found in Laos or Thailand.