definiens: . Net Sales means, with respect to a Royalty Bearing Product ( either a [COMPANY] Product or a 4DMT Product, as applicable ), the gros s amount of sales of such Royalty Bearing Product i nvoiced by a Party or its Affiliates to Third Parties, less the following to the extent related to such Royalt y Bearing Product and incurred by such Party or its Affiliate s and invoiced to the Third Party : ( a ) sales returns and allowances actually paid, gra nted or accrued, including trade, quantity and cash discounts and any other adjustments, inclu ding those granted on account of price adjustments or billing errors ; ( b ) rejected goods, damaged or defective goods, rec alls, returns ; ( c ) rebates, chargeback rebates, compulsory rebates, reimbursements or similar payments granted or given to wholesalers or other distributo rs, buying groups or health care insurance carriers ; ( d ) non - collectable receivables ; ( e ) customs or excise duties, sales tax, consumptio n tax, value added tax, and other taxes ( except income taxes ) ; or ( f ) charges for packing, freight, shipping and insu rance