The amended Gumi natural-gas power plant contract increases from ₩369,943,802,758 to ₩372,266,838,673. The revised value equals 18.03% of ₩2,065,076,215,393 in revenue, up from 17.91%. The contract is also large relative to Kumho Engineering & Construction's current market capitalization. The filing says the amount and schedule may change again.