採礦 protection 開頭之英翻 懇請幫忙

The proponent shall allocate about 10% of its initial working capital investment for the sustainable protection of the environment and it's the health of its workers. It shall adopt the best practice on mining for maintenance of sustainable environmental conditions at every stage of the mining... show more The proponent shall allocate about 10% of its initial working capital
investment for the sustainable protection of the environment and it's the
health of its workers. It shall adopt the best practice on mining for
maintenance of sustainable environmental conditions at every stage of
the mining operations.

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1.sustainable protection? (特別是sustainable)
2.it 係指撥付投資額之10%款項嗎?
3.best practice on mining在這裡當何意呢?
2 answers 2