Will at least one gram of antimatter be manufactured in a one year period before 2040?

Antimatter, composed of antiparticles, has the potential to revolutionize energy production, propulsion, and other applications due to its highly efficient energy release upon contact with matter. However, producing antimatter on a large scale has proven to be a significant challenge.

Resolution criteria:

This question will resolve to "YES" if, before January 1st, 2040, a substantial amount of antimatter (specifically, at least 1 gram) is publicly and credibly documented to have been manufactured worldwide within a one-year period. The antimatter can be in the form of any antiparticle, such as antiprotons, antineutrons, or positrons.

I will use my discretion when resolving this question, possibly in consultation with experts.