(1) Public contracts which have different types of procurement, such as supplies, works or services, as their subject matter shall be awarded in accordance with the provisions with which the principal subject matter of the contract is associated. The same applies to the award of concessions having both works and services as their subject matter.
(2) The principal subject matter of public contracts and concessions which
1. consist in part of services that are subject to the provisions on the award of public contracts for social and other specific services within the meaning of Section 130 or concessions for social and other specific services within the meaning of Section 153, and partially of other services, or
2. consist in part of supplies and in part of services
is determined according to which of the estimated values of the respective supplies or services is the highest.