Social pact on employment guarantees becomes binding labor law source under Art. 9 KP, excluding Civil Code interpretation rules.

The Supreme Court reversed the lower court's dismissal of compensation claims by Maria K. against a chemical fiber company. The court found that a social pact between the company and trade unions, establishing employment guarantees for workers on parental leave, acquired the status of a binding source of labor law under Article 9 of the Labor Code. Consequently, the employer was obligated to pay double average wages as compensation for terminating the contract without respecting these guarantees, overriding the lower court's refusal to apply such provisions.