JustinPon, WES always wants the results of external evaluations reported directly to them from the examining body, regardless of which country you’re from. The country-by-country list may be incomplete when it comes to international exams that you can take from anywhere in the world.
Regardless, you should go ahead and request a IGCSE certificate from Edexcel and have it sent directly to WES. If you are nervous, you can reach out to WES and ask them point blank if IGCSE reports sent to them directly from Edexcel are acceptable for an evaluation. I am very confident that the answer will be ‘yes’.