India and South African nations are expected to sign a trade agreement by the middle of this year, which aims at reducing tariffs on certain items traded between the nations. Commerce and Industry Minister Anand Sharma said in Johannesburg that both the sides are pushing the PTA agreement very hard.The India-Southern Africa Customs Union Preferential Trade Agreement will help the countries sign the pact by reducing tariffs for certain products. Tariffs are customs duties on merchandise imports.The Southern African Customs Union (SACU) consists of Botswana, Lesotho, Namibia, South Africa, and Swaziland.South Africa's Minister of Trade and Industry Rob Davies expressed the confidence that a mutually beneficial agreement will be finalised soon.