MR. MAHMOOD ABBAS (“M. Abbas”), MR. ZAHID NAEEM (“Z. Naeem”) and MR. SACHIN WADHWA (“S. Wadhwa”), AS PRINCIPALS - and - INFOTRELLIS, INC., AS VENDOR - and - MASTECH INFOTRELLIS, INC., AS PURCHASER UNITED STATES ASSET PURCHASE AGREEMENT JULY 7, 2017