The Containers awarded would advance you toward your next Supercontainer, yes. With 6,000 Community Tokens (the price of the Supercontainer) you could purchase 8 allotments of "Community Trophies" which would be 8 of each Signal, Coal, and Economic containers. If I recall correctly, they would advance the Supercontainer by 1.5 points each, so 24 x 1.5 = 36 points.