21 The material now before this Court shows that each of the two subject mining leases had an annual expenditure requirement of $100,000 for the year ended 11 August 1995 and each of the previous years since the grant of the mining leases in August 1992. As at August 1995 there had been virtually total exemptions granted for each tenement in the two previous tenement years going back to the grant of the two tenements in August 1992. The two tenements replaced others held by the same parties who had in fact spent minimal amounts on the ground comprised in them since 1989. The submission by the applicant to the Minister showed that ML 53/233 was granted following the surrender of previous tenements, including the area covered by ML 53/233. The expenditure shortfall on the relevant tenements since 1989 was very substantial. In respect of ML 53/233 the expenditure claimed was $116,270, in respect of which exemptions amounting to $1,254,372 had been granted involving an expenditure shortfall of $1,466,470. In respect of ML 53/234, this was granted following the surrender of earlier tenements including the area covered by ML 53/234. The expenditure shortfall and exemption history of ML 53/234 since 1989 showed that expenditure claimed was $111,793, exemptions granted amounted to $675,926 involving an expenditure shortfall of $792,353.