Au contraire - the SP/mcap was manipulated upwards to forward-sell the inevitable cash call to hapless PIs who don't know how to value a company but she'll be fine from c£30m.
I think the mcap is more than solid at this value - the SP is another matter of course - depends on what they plan to do with the remaining £10m - that was enough to get you a DFS back in the day which would double the marketable value of the tin mine project.
Industry standard metric of a PEA/PFS valuation of NPV * 0.16 = £30m + tin price 10% over the PEA tin price should add another 10% (maybe significantly more) + c£10m in cash = £43m / 8p.