Mrs Mahase holds an Award of the Best Organisation Driver 2016, of the Finite Women Appreciation Awards, for the outstanding leadership and the youngest CEO. In her tenure of office amongst others, she hosted successful annual conferences which attracted for instance, the former President of the Republic of South Africa Dr Thabo Mbeki (in 2015), the Chairman of Econet wireless Dr Strive Masiyiwa (in 2016).
Mrs Mahase has participated and represented Lesotho in various forums internationally, such as International Federation of Accountants and the Pan African Federation of Accountants. She has presented research papers in numerous conferences and congresses, on Gender Diversity in Leadership. She also have addressed the Eastern and Southern Association of Accountant Generals ESAAG, on the Role of Accountants in the enhancement of the Public Financial Management Reforms.