Sioux state industrial park, sanction technology ltd., has a registered address in room 2092, no. 378 east rim road, sioux state industrial park, with the registration authority being the administrative approval board of the sioux state industrial park, represented by a legal person, and operating in the area of production and sale of air conditioning filters, measuring instruments, cleaning clothing; research and development, marketing: purification products, purification engineering materials, air conditioning products, dustless room consumables; design, installation and commissioning of air purification systems, air conditioning and hydropower systems; and air quality testing and related technical services. (a) licensing of projects (subject to legal approval and prior to authorization by the relevant department): construction engineering design; construction works; installation of protective personal engineering equipment (subject to legal authorization, subject to the approval ...