[4 Lianban Guanshi Technology: uncertainty in the implementation of Optical Mask Manufacturing Project] June 5, Guanshi Science and Technology issued a change announcement, the company plans to invest in the optical mask manufacturing project, there is uncertainty in the implementation of the project. There are technical risks, import risks of key equipment, risks that economic benefits can not reach expectations, risks of depreciation and amortization of new assets leading to profit decline, capital sources and financial risks, market environment change risks, industrial policy change risks, uncertain risks of refinancing plans, and uncertainty in project construction.