Contact SUM:

Joe Sum, P.E.
President
Sum Service Company USA
7723 Tylers Place Boulevard No. 127
West Chester, Ohio 45069
Tel: 001-606-922-3579

Joe@SumService.com

 

JoAnn Zhang
Regional Director - Dalian Office
Sum Service Company USA
No. 1 Shidao Street, 6th Floor, Suite 1
Xigang District, Dalian
China 116011
Tel: 011-86-135-0074-3076 

Joann@SumService.com