Sand Technology Systems International Inc has reported second quarter net profits down to the equivalent of $7,084 from $96,826 last time on revenue down 73.7% at $1.1m; mid-term net profits fell to $18,000 from $171,295 for the same time last year on revenue down 63.9% at $1.6m. The figures have been converted at $0.7252 to the Canadian dollar.