The opposition has said it will reverse tax holidays if it comes to power, and impose a 40 percent tax on gaming revenues as in Macao with no income tax, or a lower rate of around 20 percent like in Singapore with corporate income tax.
Sri Lanka's John Keells Holdings is also building a similar resort.
"Sri Lanka is a beautiful and unique country with huge tourism potential, I have great confidence in the country's future and believe as a destination that it is Sri Lanka's time to shine in Asia," Crown chief James Packer said in a stock exchange filing.
"A Crown integrated resort would help redefine luxury tourism in Sri Lanka and play a significant role in helping to drive increased international in-bound tourism especially from India and China.
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The group said its "Crown Sri Lanka" project will be a landmark resort with "contemporary and iconic' design.
The 5-star resort will have 450 rooms and suites, dining and entertainment offerings, conferencing, gaming areas, retail outle