"...including the 2020 work..."

2020 was the year in which Aztec first reported encountering high-grade gold-equivalent ounces at Tombstone, and that was low on the scale of what defines high-grade gold - 6.36 grams per ton.

Their most recent news reports bonanza-grade silver (anything over 950 grams per ton) of 3,477 grams per ton in one intercept.  That's leagues apart from the 2020 news, but the statement at least tells us LBSR recalls old news in the same immediate area.