; and (B) notwithstanding subparagraph (A), be personally responsible for 10 percent of any damages, civil penalties, or other restitution or fees assessed against the contractor or subcontractor for the violations, with the contractor or subcontractor responsible for not more than 90 percent. (2) No reimbursement A contractor or subcontractor may not refund in any way any amounts paid by a shareholder under paragraph (1). . (7) McNamara-O'Hara Service Contract Act Section 6707 of title 41, United States Code, as amended by subsection (b)(7)(A), is further amended by adding at the end the following: (b) Joint liability of large shareholders (1) In general In any action or proceeding for a violation of this chapter, the 10 largest shareholders of a contractor, as determined by the fair value for their beneficial interest as of the beginning of the period during which the violation occurred, shall— (A) jointly and severally be personally liable for all violations of this chapter, and for all damages awarded and civil penalties assessed for violations of this chapter