provided that 貴司 shall be fully responsible and relmburse IMSA, at the landed cost or gross sales for the customer return up to 1 percent of IMSA's gross sales revenue during the renewal period and for customer return beyond 1 percent of the gross sales revenue, 貴司 shall be responsible for 50 percent of such returns and the rest 50 percent shall be on IMSA's accountUnder the guidance of 貴司,IMSA shall at its own costs, be fully responsible for dealing with such issues to mitigate the actual and potential impact on 貴司. 貴司 shall support IMSA by providing a fund of 0.5 percent of the gross sales revenue and shall relmburse IMSA on quarterly basis.