71 square km or ~52.6% of the former area of EL 4633 have been relinquished, as they are now viewed as less viable places in which to attempt commercial solar salt production. Exploration activities undertaken during the reporting period, with relevance to the now relinquished ground, included: - Assessment of potential of salt lakes for solar salt production. - Literature review of information relating to the location. - Assessment of potential of saline groundwater for feed stock for solar salt production. - Baseline evaluation of environmental and cultural issues likely to affect salt production. - Design and development of salt field operations. - Design and planning of conceptual salt field layouts. - Continued economic assessment of solar salt production.