An export tax on natural gas, effective immediately.

It also introduces the export tax on logs, which allows the state to record significant revenue budget.

In 1890, an export tax was changed from being based on value, to weight.

In 2008 the rural sector mobilized against a resolution that would have increased the export tax rate on soybean exports from 35% to 44.1%.

Virtually all export tax incentives were eliminated over the course of the 1970s.