For performance of the basic services (Work Stages [..]), the Client undertakes to pay the Consultant a fee calculated by the application of a fixed rate of [..] to the amount of the Works excluding Value Added Tax (VAT).
The rates for optional services are as follows :
- A : […]
- B : […]

The rates apply to the initial construction cost estimate for Work Stages [...]. They apply to the contract sum for the remuneration of Work Stages […] within the limit of the tolerance rates. Fees shall be fixed lump sum for Work Stages [.]. This provision is effective under the condition that the end of the Work Stage [….] or, prior to […] following the submittal of the revised outline design namely, on [...].
Upon the signature of the construction contracts, the lump sum fee is based upon the reference value of the works, as it results from the Tender Action.
The fees for the construction stages are reviewed in proportion to the evolution of the index […], in accordance with the formula […].
By way of payment for the service defined hereabove, the Client shall pay Consultant fees, in accordance with the separate valuation and assessment for each Work Stage per co-consultants as follows :
- [...]

The lump sum fee for the service […] is set at [...], revised in accordance with the same rule as the fees for each Stage of construction and allocated as follows:
- […]

The principal payment includes […] journeys of […] days for […] persons for each Stage and […] visits to the site.