Other operating costs

Following is a breakdown of other operating costs:

(€ thousand)20132012
Costs for services rendered by Group companies and other related parties  24,953 27,207
Costs for services rendered by third parties  24,047 26,965
Compensation component from stock option and stock grant plans 6,005 8,689
Leases and rentals 4,245 4,017
Purchase of goods 729 744
Depreciation of property, plant and equipment 1,894 1,856
Amortization of intangible assets 152 148
Misc. operating costs 10,170 6,633
Total other operating costs 72,195 76,259

Costs for services rendered by Group companies primarily consisted of support and consulting services in the administrative area, as well as IT systems, public relations, payroll, security, real estate and internal audit services (see Note 29).

Costs for services rendered by third parties principally included legal, administrative, financial and IT services.

For 2013, compensation for the directors and statutory auditors of Fiat S.p.A. totaled €4,372 thousand and €239 thousand, respectively. For directors, that compensation includes fees approved by shareholders, as well as compensation set by the Board of Directors for directors with specific responsibilities.

The compensation component from stock option and stock grant plans represents the notional cost of options granted to the Chief Executive Officer (see Note 18).

Miscellaneous operating costs consist of membership fees and contributions to trade associations, indirect taxes and duties (property tax, non-deductible sales tax, etc.), prior year expenses and other minor charges.