The Squad was dispatched tonight along with Station 49 (North Branch) and Station 32 (Readington) to reported exterior fire off Meister Rd in the industrial park.  The assignment was originally responded to by duty crew BLS7455, but was shortly upgraded when arriving fire officers reported heavy fire in rear of US Intec.  Station 74 Rescue completed a general alert and soon rolled Services 7457 with Rehab Supplies, and 2 additional BLS units to the scene.  EMS Branch was established by Chief 7450 reporting to Chief 32 who was handling Commmand along with Chief 49.  Branchburg Rescue set up a Rehab area and stood by for approximately 3 hours until released by Fire Command.  No injuries where reported.  Fire is being investigated by Branchburg Police & Branchburg Fire Officials.