Some years ago as an old TSF member I did a lot of research involving many hours, emails and telephone calls re the availability and supply of stiff net for classical tutus. Older members with an interest in tutu making will probably recall this.
I had samples and quotes for supply of same (wholesale) from China, quite a long convoluted process with the ultimate result that what was available at the time was not of such quality as classical tutu makers here required and minimum quantity was way beyond what I wished to purchase.
Heathcoats of Tiverton England were the best option for larger supplies and a good weight (27gsm) if I remember correctly was available in a large number of colours, prices and delivery were very competitive and their service then was excellent.
Changes in manufacturing processes meant that supply went out of production and the subsequent current A1866 was somewhat less than satisfactory in comparison.
I did source an excellent tutu net from Italy, also available in many colours. Again, minimal quantity 50 metres of 300mm width.