ID this mastering engineer?

Got a record that I can't seem to find the mastering engineer for (https://www.discogs.sie.com/release/12683618)

Runout is HM/ HIM with a box drawn around the letters - here's some pictures of both sides of the record - https://imgur.com/a/WrOhoH3

Any ideas?

HLM Dub Studio?

Think you're right, it's a Bristol based label. Cheers!