Aim-listed Thor Explorations has revealed a year-on-year decline in revenue but a significant boost in net profit for the first quarter. In its operational and financial review for its Segilola gold mine in Nigeria, as well as for the company's mineral exploration properties in Nigeria and Senegal for the three months to March 31, Thor reported revenue of $33.3-million, down from $40.3-million in the first quarter of 2023.