Aerodrome equipment Lasers Microscopes Microvisors Observation devices Professional cinema lenses OEM components (lenses, eyepieces, ...) Optical components Spectral instruments Endoscopy Telemedicine complex Manufacturing of product prototypes Internal documents For shareholders History Management board of JSC Financial statements Annual reports Material events Quarterly reports of the issuer Affiliated persons Shares Bonds Electricity transmission Heat transmission Water supply and sewerage Provision of copies of documents