execution copyexhibit 10. 48 [ * ] = certain confidential information contained in this document, marked by brackets, has been omitted because it is both ( i ) not material and ( ii ) is the type that the registrant treats as private or confidential. commercial payment purchase agreementdated as of october 6, 2021betweenaffitech research as, as seller, andxoma ( us ) llc, as purchaser execution copy execution copy exhibit 10. 48 [ * ] = certain confidential information contained in this document, marked by brackets, has been omitted because it is both ( i ) not material and ( ii ) is the type that the registrant treats as private or confidential. commercial payment purchase agreementdated as of october 6, 2021betweenaffitech research as, as seller, andxoma ( us ) llc, as purchaser exhibit 10. 48 [ * ] = certain confidential information contained in this document, marked by brackets, has been omitted because it is both ( i ) not material and ( ii ) is the type that the registrant treats as private or confidential. commercial payment purchase agreementdated as of october 6, 2021betweenaffitech research as, as seller, andxoma ( us ) llc, as purchaser commercial payment purchase agreementthis commercial payment purchase agreement ( this “ agreement ” ), dated as of october 6, 2021 ( the “ effective date ” ), is between affitech research as ( formerly known as affitech as ), a norwegian company with the organization number 976 567 900, with their office and place of business at lillogata sm, 0484 oslo, norway ( “ seller ” or “ assignor ” ), and xoma ( us ) llc, a delaware limited liability company with its principal place of business at 2200 powell street, suite 310, emeryville, california 94608 ( “ purchaser ” or “ assignee ” ). w i t n e s e t h : whereas, seller and its affiliates ( collectively, “ affitech ” ) on the one hand, and f. hoffmann - la roche ltd, with an office and place of business at grenzacherstrasse 124, 4070 basel, switzerland ( “ roche basel ” ) and hoffmann - la roche inc., with an office and place of business at 150 clove road, suite 8, little falls, new jersey 07424,