By Amber Murray Artisanal Spirits Company (ASC), single-cask and limited-edition whiskey specialist, has reported another uptick in profits as it reaches an “inflection point” in its cash profile despite a slowdown in China. The Edinburgh-based brand reported that earnings before interest, tax, amortization and depreciation (EBITDA) increased by £1m year on year. Revenue was “broadly flat” in the first half of the year, the company said. ASC has struggled to sell in China and has diversified into new markets to reduce exposure to the country, the company said. “Trading continues to be challeng…