The hi-tech materials company Entegris has renewed its 175,088 sqf lease at the Rivertech building in Billerica. The two building office complex is located near Route 3 which connects suburban Boston’s two major highway loops, I-95 and I-495. Entegris leases the entire building at Rivertech II which it has occupied since 2001. The landlord, KBS, was represented by Brian McKenzie, John Wilson, James Lipscomb and Kirk Weller of Transwestern | RBJ, and Entegris was represented by Brian Morrissey and Brooks Murphy of JLL. “Rivertech’s location along the Route 3 corridor is easily accessible from all directions, making it a great option for tenants seeking high quality office/R&D space,” said Shannon W. Hill, senior vice president at KBS.