Welcome to Ormantine USA, Ltd. Ormantine USA is amongst the market leaders in the preparation, supply and analysis of diffusion tube environmental monitors. Our activities. You can find out about all the riches that nature and man have to offer at Les Domaines Agricoles here!. Nos domaines d’activit . Toutes les richesses naturelles mais aussi humaines des Domaines Agricoles sont d couvrir The expansive exhibit hall is centrally-located at the Quebec Convention Center, and is host to continental breakfasts, refreshment breaks, hands-on demonstrations.