As SoundGuy says, many companies in the US should have HydroxyEthyl Cellulose or Methyl. People get so het up on having to use Natrosol, its just a trade name of a HydroxyEthyl Cellulose.
Our prices are probably cheaper but postage is going to cost more. If you wanted to purchase a larger order than I could probably get a better price than Ebay charge. All our overseas Ebay orders are handled by Ebay, we post to the Ebay UK shipping centre and they than do the onward overseas bit.
Our Easy mix Hydroxyethyl Cellulose is £22.99 per kg but if UMDer's do a best offer of £19.99 we'll accept it, possibly less for larger orders. Our Carboxy Methyl Cellulose is £8.99 but will accept £6.99 and we have Xanthan Gum at £7.99 but will accept ££6.50 from UMDers.