Our company's technology is the first in the world, with national invention patents. How can we say that technology comes first? Is there a state agency that can demonstrate this?

You can ask the National Bureau of Justice to issue a search report, that is, search the existing technology before the application date, thus proving that you are the first, with a slow cost of 1500 and a fast cost of about 3,000. It is because if it is an invention patent, after the actual trial, it must meet three requirements, so it can be said to be novel, and people who know how to do it will not question this.