Not only his word, but that of others. Sometimes you can't get definitive proof, but it looks pretty good to me as it corresponds exactly with what he stated several years subsequent to the company PR:
"Cornerstone's business model is predicated on generating high quality exploration projects which have the potential to yield outstanding returns to the company and its shareholders but which can be financed primarily through joint venture partnerships. Cornerstone's current and past joint venture partners include Agnico Eagle, Candente, Celtic Minerals, Coastport Capital, Falconbridge Mining, Inmet Mining, Woodruff Capital Management, Kermode Resources, Moydow Mines, Noranda Inc, Phelps Dodge Mining, and Thundermin Resources."
These verify Ken's public statements as to his JVs. The level of scrutiny has changed on the board. Previously there was acceptance of his JV's, but the notion they were trivial. At the time I researched and found they were good deals. Some of these companies which I've checked have subsequently done very well. Some have been way down close to KATX's fall from the previous high, but have bounced back even higher. Suppose it is the nature of the exploration business.