Because after the assessment of taxes and large penalties, tax collection officers can civilly seize assets to pay the additional taxes, thus depriving an individual of untaxed profits.

因为在增加应纳税额和课以处罚之后，税收官员就可以依据民事程序扣押财产以支付增加的税款，以次收缴违法者所获得的利润。

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Coal companies will have to pay 26% additional tax on profits.

BBC: Indian tax plans condemned by mining companies

Yet they must compete with overseas firms that pay low tax rates on their own domestic investments and no additional home country tax on active profits from investments in other countries (including the U.S).

FORBES: A New Way To Address The International Tax Mess For U.S. Companies

She also said the PQ would add a 30% additional tax on all mining profits over a certain level, which she did not elaborate on.

FORBES: Parti Quebecois' Suggestion To Raise Quebec Mining Royalties Rate Could Be Damaging