Total assets increased 58.3% YOY
Gross profit reaches $186M in 2015
Revenue increased 61.7%YOY
Gearing ratio decreased to 44.6% in 2015
Longi Silicon Materials（including LONGi Solar）has been the latest company to join “Silicon Module Super League”
This exclusive industry grouping now consists of seven companies forecast to ship more than 4GW of modules during 2017.
HUAWEI Technology Co., Ltd.
Du Pont China Holding Co., Ltd.
The University of New South Wales
Power degradation <5% after DH300,TC600,HF30,UV45...
PID96h,PID300h and PID600h (85°C /85%RH)...
Power degradation <3% Dynamic mechanical loading (1000cycles)+TC50+HF10.
Product and Control Desgin
Comprehensive quality system Design (ISO 9001)
New Product / Material Qualification
Standardized Product Change Procedure
Comprehensive quality system management
Vigorous Process Quality Control with 50+ Check/Control steps(FMEA, Control Pan,MSA),
High accuracy/stability measurement system
Recognition by Authorized Thrid Partites
Continue improvement with customer feedback and internal FMEA
Module performance tracing with customer
Whole process tracing by MES (Manufacturing executing system)
Completed reliability monitoring procedure
Co-working with industrial leading institutes and labs
10 years warranty for materials and craftwork
Output reached 83.8% in the 25th years
25 years linear power output warranty
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