Tona Syntegra Solar is a joint venture between Tona Corp and Syntegra Solar AG. While Syntegra Solar is a German-Swiss based company specialized in Solar PV Consulting & Advisory and Project Development Firm, recognized for its Focus and Expertise in Photovoltaic Technologies, Tona Corp is a Vietnamese based-leading construction – total solution provider. Together, we aim at top high-yield solar rooftop PV system brand both national-wide and internationally. We dedicate ourselves to help customers harness solar energy effectively preventing you from increased electricity prices for decades to come.