The respondent company leased premises from the appellant to manufacture registered medicines, cosmetics, toiletries, food products and confectionary. From 2000, the roof developed leaks after the appellant replaced guttering. The leaks progressively worsened, spreading from the boardroom to the factory and administration block. By February 2007, leaks affected the warehouse, raw materials store and packaging areas. By October 2007, leaks extended to manufacturing areas including drug mixture manufacturing and tableting areas. In December 2008, the respondent stopped manufacturing medicines due to the leaks rendering sterile areas unsuitable. It continued food and confectionary processing until July 2009. In March 2010, the appellant sued for US$58,021.94 in arrear rentals (later amended to US$72,221.94), cancellation of the lease, ejectment and holding over damages. The respondent admitted the debt in full in its plea but counterclaimed US$196,250 (later reduced to US$170,000) for lost profits due to the appellant's failure to repair the roof. The respondent voluntarily vacated the premises in 2010.