The pound's slide since Britain voted to leave the European Union in June appears to be working out exactly as anticipated - while helping firms to win business from overseas, it's pushing up their costs by raising the price of imported goods. That contrast was the main finding Tuesday from a closely watched survey into the manufacturing sector conducted by financial information company IHS Markit, in association with an industry body, the Chartered Institute for Procurement and Supply, or CIPS.

In their monthly survey of the manufacturing sector, they said firms have reported a pickup in new orders from the U.S., the EU and China in light of the pound's 20 percent or so fall against a broad range of currencies since the June 23 vote.

The boon to exports has helped the survey's purchasing managers' index, a broad gauge of economic activity in the sector, stay at relatively high levels. Though falling to 54.3 in October from 55.5 in September, the index remains well above the 50 threshold that separates contraction and expansion. It's also markedly higher than the long-run average of 51.5.

While, the pound's depreciation makes British exports cheaper in the international marketplace, all other things being equal, it has the potential to boost inflationary pressures in the economy by making imports more expensive. And that's exactly what the survey found.

"The downside of the weaker currency is becoming increasingly evident, however, with increased import prices leading to one of the steepest rises in purchasing costs in the near 25-year survey history," said Rob Dobson, senior economist at IHS Markit, which compiles the survey.

Especially highlighted were costs for flour, dairy products, steel and zinc.

So far, most businesses haven't passed on the cost increases to consumers. However, they aren't expected to do that forever and when they do there will likely be an impact on broader inflation rates. At the moment, inflation in Britain remains at a historically low level - 1 percent in the year to September.

Low inflation has given the Bank of England room to cut its main interest rate to a record low of 0.25 percent in the aftermath of the Brexit vote. Were inflation to start rising toward and beyond the Bank's 2 percent target, then there will be pressure on policymakers to start reversing course. Higher borrowing rates can rein in inflationary pressures by dampening economic activity and giving a lift to the pound.