A subcontractor is an individual or in many cases a business that signs a contract to perform part or all of the obligations of another's contract.

A subcontractor is hired by a general contractor (or prime contractor, or main contractor) to perform a specific task as part of the overall project and is normally paid for services provided to the project by the originating general contractor.

dependant (adj.)
condicionado, condicional, dependente
http://translation.sensagent.com/dependant/en-pt/

Vendor Category
This is what I have found, unfamiliar territory for me!
Hope it helps you.

http://www.meas-spec.com/about/t_infodetail.aspx?id=4372&men...

Preferred: direct production vendors that are fully qualified for mass-production and a required source for NPI purposes. Also referred to as "Preferred Vendor List" (PVL) vendors

1
Alternate: second source direct material vendors. May be used for mass production or NPI, after preferential treatment has been granted to the status code PVL vendors

2
Conditional: not yet rated or audited vendors, but with acceptable performance based on historical or known records i.e. grandfathered. May also include vendors that are conditionally approved pending non-conformng items after an audit, or vendors that need to be improved or developed to continue in the approved vendor list

3
Dormant: inactive vendors without recent past purchase orders or no forecast

4
Expense/MRO/Service: vendors that do not have a direct impact or use on manufactured product