We at Biz-find use various methods to get our business leads in Philippines:
Firstly we have a team of affiliates who actively contact business in Philippines to find out what products and services they are sourcing right now and these are added to the site for the main admin to vet. main admin will often call a business to check the validity of the lead and then publish to the Philippines business leads page.
Secondly each time a business registers free on our websites they can, if they wish, add a lead for what they are looking to buy. We offer incentives like upgrades and cash for these leads, and we vet them in the same way we do any other lead.
Our leads are posted for thirty days and the lead posters are asked at 30 days whether they want to delete the lead, if they have found a supplier, or repost again with a new date.