Kovalevsky also headed the commissions for preparing Russian exhibits at the 1893 World's Columbian Exposition in Chicago and the 1900 World's Fair in Paris. By Kovalevsky's personal initiatives, 1893 saw the beginning of the publication of the "Trade and Industry Gazette" (). In 1896, he developed a project on the position of Russia's commercial schools. He also contributed to the conclusion of trade agreements with Germany and other countries. With Kovalevsky's active involvement, the 1896 All-Russia industrial and art exhibition took place in Nizhniy Novgorod. Later, in 1898, he was involved in the development of a new law on state-industrial taxes. From 1899 to 1901, Kovalevsky was chairman of the Special conference on the preparation of legislation on the establishment of industrial enterprises.