We are based here in London-Asia-Africa . WE SALE CHEMICALS LIKE TOURMALINE, S.S.D. Chemical / Solution, CASTRO X OXIDE, A4. AND MANY Like ACTIVATION POWDER & SSD SOLUTION FOR CLEANING BLACK NOTES, OTHERS FOR DAMAGED NOTES, BILLS LIKE USD,EURO, POUNDS, TRANSFERRING COLORS FROM USE NOTE TO NEW WHITE BILLS,AND BLACK NOTES,GREEN NOTES. WE WORK ON COMMISSION-WE ALSO OFFER MACHINES TO DO THE BIG CLEANINGS.