By way of derogation from the provisions of section 3 and subject to the conditions of declaration or authorisation provided for in this section, the following benefits in kind or in cash may be offered:
1° Remuneration, compensation and out-of-pocket expenses for research, development of research, scientific evaluation, consultancy, provision of services or commercial promotion, provided that the remuneration is proportionate to the service rendered and that the compensation or out-of-pocket expenses do not exceed the costs actually borne by the persons referred to in article L. 1453-4 ;
2° Donations and gifts, in cash or in kind, intended exclusively to finance research activities, the promotion of research or scientific evaluation;
3° Donations and gifts intended for the persons mentioned in 3° of article L. 1453-4, with the exception of the national professional councils mentioned in article L. 4021-3 and associations whose purpose is unrelated to their professional activity;
4° Hospitality offered, directly or indirectly, during events of an exclusively professional or scientific nature, or during events promoting the products or services mentioned in article L. 1453-5, provided that this hospitality is of a reasonable level, is strictly limited to the main purpose of the event and is not extended to persons other than those mentioned in article L. 1453-4, with the exception of the students undergoing initial training mentioned in 2° of the same article L. 1453-4 and the student associations mentioned in 3° of the same article L. 1453-4 ;
5° Financing or participating in the financing of professional training or continuing professional development.