Complex sentence: On this foundation Nipmark Ltd began trading as The Whitby Shellfish Company in 1963, in its heyday, The Whitby Shellfish Company was a pioneer in the UK breaded scampi industry.
Split into simpler sentences: On this foundation Nipmark Ltd began trading as The Whitby Shellfish Company in 1963. In its heyday, The Whitby Shellfish Company was a pioneer in the UK breaded scampi industry.