Sainty Solar is one of the leading partially vertically integrated manufacturers of crystalline photovoltaic (PV) modules and a package of solar system kits provider.
 

OPTI-Solar was established in 2006 by OPTI-UPS. Being a supplier of Uninterruptible Power Supply (UPS), OPTI-UPS has focused on the export market over 2 decades. Based in the US, OPTI-UPS has offices in USA, Middle East, Australia, Japan, and Taiwan.