HANOI: Vietnam has asked for a last-minute delay to colossal tariffs imposed by Washington as government figures showed on Sunday (Apr 6) that its economy grew at a slightly slower pace in the first quarter. The Southeast Asian manufacturing powerhouse counted the United States as its biggest export market in the first three months of the year but its key customer has now hit it with a thumping 46 per cent tariff. The move is part of a furious new global trade blitz announced on Wednesday by US