It doesn't to me.
Gowns and no doubt other things are needed and in short supply now and now we need them we find that everyone else does too and we'll all competing for the same limited supply. Having a UK based supply chain could ease that in future pandemics and I don't care if capacity is expensive and under used most of the time as if and when we need it it'll more than pay for itself in human terms.
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The problem does exist, but it's nowhere near as bad as the government would have us think.
The main source of supply is China, they've had their own problems, partly because they needed PPE for themselves and partly because their lockdown cut production - Chinese factories rely heavily on migrant labour from distant provinces, the Covid 19 problem appeared when many of these workers had gone home for their annual holidays (Chinese New Year) and couldn't get back to work.
But that ended some time ago, factories have been at full production for some time now and of course are working very efficiently. They can easily cope with all demand, domestic and foreign, and can more than double production simply by running 24/7. which their factories are able and happy to do.
Costs have gone up because of the laws of supply and demand, but the increase is generally very small. Or at least, it's small when private buyers talk to them, but of course our government has left procurement to the British embassies, they employ loads of native Mandarin speakers and so there are no language problems, but there is a real culture problem and because they aren't business people they can end up paying far more than the amounts paid by business customers.
Air freight costs have increased, dramatically - about 40% - and very little can be done about this because of the reduced air traffic and the fact that demand greatly exceeds supply, but air only has to be used for emergency supplies. If we had ordered PPE in the right quantities and at the right time we would have brought it in by sea, avoiding the bottleneck and costs of air supply.
And of course it's worth pointing out that the Chinese are more than capable of providing the quality needed, they've been doing it for years. Stories about below standard goods aren't always false, but the large factories that have always manufactured PPE to the required standards have continued to do so.