The deals involve the oil sector and the car and tractor industries.
A joint statement reaffirmed Minsk's support of Iran's nuclear efforts.
Iranian President Mahmud Ahmadinejad said Lukashenka's two-day visit had opened up a new chapter in bilateral relations.
DIPLOMATIC OFFENSIVE: As the United States and the European Union increase pressure on Iran regarding its nuclear program, Tehran has launched a wide-ranging and ambitious diplomatic offensive, including high-level state visits with countries including China, Indonesia, Afghanistan, Azerbaijan, and Pakistan. In May, Iranian President Mahmud Ahmadinejad participated in a high-profile summit of the so-called Developing 8 (D8) group of countries in Bali. Below are some links to RFE/RL's coverage of Iran's efforts to boost international support for its position.
ARCHIVE To view all of RFE/RL's coverage of Iran, click here.