English to Serbian Bus/Financial Finance (general)

Tekst je o propisima koji uređuju razne vrste plaćanja koja firma može da obavlja, klijentima, dobavljačima, državi, itd. Treba mi neki predlog za termine "Sourceable Supplier" i "Non-sourceable Supplier". Evo malo konteksta gde je navedeno šta sve spada u jedno a šta u drugo:

If the payment is to a "non-sourceable supplier" such as company associates, testing and clinical panelists, interviewees, Board of Directors, company representatives, certain government agencies, etc.

If they are to an Active "Sourceable supplier", such as recruiting kiosks/stands, office supplies, facility repairs, freelance modelling and photography


Prvi deo problema je u tome što ne znam šta bih sa "(non)-sourceable", a drugi to što mi je u najmanju ruku čudno što se "company associates and representatives" nazivaju "suppliers", to jest, bar mi na srpskom zvuči jako problematično.