Robert Mugabe told delegates they should enjoy Victoria Falls and bungee jumping as an activity.
Only foreign companies using raw materials from inside Zimbabwe will be obliged to hand over 51 percent.
The cabinet has agreed to cap the salary for managers of government-owned entities.
The former finance minister and senior MDC member had a similar attack on his home in 2011.
Party insiders say the document was given to Tsvangirai on Thursday by a group of senior MDC officials.
Jacqueline Zwambila has asked for political asylum just days before her term ends.