You have every reason to be concerned.
#1 Either this company's jets are set up to run rich and emit more SO2 - or #2: have fuel extenders or "anti static" additives doped into the fuel from whom ever supplies the fuel contract to your company - or #3: have a separate system installed for automated gps dispersal via bootstrap centrifugal pump. Check with your mechanics (if they'll talk) check trailing edge of wings and flaps for a small gap which allows for laminar type distribution. The apparatus will probably be well hidden inside wing body or check rear of engine for tubing or anything that might not look as though it belongs. You are fortunate enough to have access to the tarmac and get an upclose where as most of the rest of us are kept out of the loop due to the threat of getting new holes put in our body by airport security.

Their own words:
"condensation trails are extremely rare under normally dry stratospheric conditions."

An overview of geoengineering of climate using stratospheric sulphate aerosols

STATISTICAL STUDIES OF ATMOSPHERIC NANOPARTICLES AND THEIR PRECURSORS

Levitating nanoparticles may make for better geoengineering

Aviation and the Global Atmosphere

Aurora Flight Sciences discussion of H2SO4

Toward ethical norms and institutions for climate engineering research

The discussion is limited to "discussion" in science papers is because the researchers, government and companies such as your new one do not want to talk to you about it is because nothing is legislated and what they are doing under the guise of "research" is illegal. Chances are your company is getting kickbacks somewhere along the way, if they are agreeing to take part.

OOPS!