In addition to the other sums payable under this Agreement, Partnership shall pay, and hold Manager harmless against, all sales, use or other taxes, or other fees or assessments imposed by any Legal Requirement in connection with the provision of the Services, other than income, franchise or margin taxes measured by Manager’s net income or margin and other than any gross receipts or other privilege taxes imposed on Manager. Manager and Partnership shall cooperate with each other and use commercially reasonable efforts to assist the other in entering into such arrangements as the other may reasonably request in order to minimize, to the extent lawful and feasible, the payment or assessment of any taxes relating to the transactions contemplated by this Agreement; provided, however , that nothing in this Section 4(b)  shall obligate Manager to cooperate with, or assist, Partnership in any arrangement proposed by Partnership that would, in Manager’s sole discretion, have a material detrimental effect on Manager.