I know it can be made in particle accelerators but how will we contain it?It will likely become the perfect fuel for the future's space ships.We'll
be able to travel to Mars in just a couple of days and to nearest star in a few years!!!
But the main problem,is the military who will more likely create weapons out of this,a weapon more powerful than anyone could imagine.
Antimatter can be contained in high magnetic 'jars' which they keep in the CERN labs.
As for mass production, it costs billions of dollars just to produce a single Matter - Antimatter pair, and in the history of CERN only around 10 - 15
have ever been made. Although they did create the very first Anti-Hydrogen particle.
Anti-matter is easy to produce when you have mastered gravity.
Gravitational knowledge and capability will only advance once we can leave earth and visit a star system where naturally occurring mass of high level
elements exist.
Thus the conundrum where we need it to get out of here but we need to get out of here to get it.