From the North via M6/M5/M50
Follow the M6 south to junction with M5, continue south along M5 to exit at Junction 8 and join the M50 signposted South Wales. From the end of the M50 at Ross on Wye follow the A40 via Monmouth and on to the A465 at Abergavenny; follow A465 to junction with A470 at Merthyr Tydfil and go south along A470 to junction with A4059/A472. Follow A4059 signposted Mountain Ash for approx 3 miles and Cynon Valley Business Park is on your left.
An alternative route is to follow the A465 to its junction with the A4059 at Hirwaun and then go south east following the A4059 via Aberdare and Mountain Ash; Cynon Valley Business Park is on your right approx 1 mile east of Mountain Ash.
From the East/West Midlands via M42/M5/M50
Follow the M42 to junction with M5, continue south along M5 and exit at Junction 8 to join M50, as above.
From the East via M4
Follow the M4 west over the Second Severn Crossing and through the tolls, exit at Junction 32 to join the A470 signposted Merthyr Tydfil. Follow A470 to junction with A4059/A472 and follow A4059 signposted Mountain Ash for approx 3 miles and Cynon Valley Business Park is on your left.
From the South/South West via M5/M4
Via M5 - Follow the M5 north to Junction 18A and join M49 signposted South Wales M4. Join the M4 at Junction 22 and go west over the Second Severn Crossing through the tolls, and exit at Junction 32 to join the A470, as above.
From West Wales via M4
Follow the M4 east and exit Junction 43 to join A465 signposted Merthyr Tydfil. At junction of A465/A4059 at Hirwaun, follow A4059 via Aberdare and Mountain Ash. Cynon Valley Business Park is on your right approx 1 mile east of Mountain Ash.
From North Wales via A470/A483
Via A470 - follow A470 south via Dolgellau, Builth Wells, Brecon and Merthyr Tydfil to junction with A4059/A472 just south of Merthyr Tydfil. Follow A4059 signposted Mountain Ash for approx 3 miles and Cynon Valley Business Park is on your left.