The Acting Secretary General of Chamber of Commerce and Industry in Madinah Amir Sulaihem met here on Tuesday with officials from Lahore Chamber of Commerce and Industry and Pakistani businessmen. During the meeting, they signed a Memorandum of Understanding (MoU) between the two Chambers on investment in Knowledge-based Economic City as well as industries related to Hajj and Umrah through partnerships between businessmen in Madinah and their Pakistani counterparts.