Interestingly enough, Brompton's principals have stated in numerous interviews over the last couple of years that they're planning on doubling factory production to 100,000 bikes/year by ~2021 and exporting 50,000 of those bikes a year to China, where Dahon's main factory is located and where Dahon has something like 200 company owned stores.
"Folding bike manufacturer Brompton saw its turnover rise 15 per cent in its latest financial year
despite the number of bikes it sold remaining static for the third year running – a situation it hopes will be rectified as its new electric-bike hits the market in the coming months."
Brompton turnover up sharply in 2016/17 despite flat volumes | road.cc