yes, If you’re coming to Yangon, it’s best to bring a lot of cash in USD. Using an ATM will give you the official government exchange rate of 2100 MMK per USD, but the actual market rate outside is around
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MMK per USD.If you end up needing to buy USD, you’ll likely face an even higher exchange rate, making it more expensive.
Due to various exchange rate issues, ATM, Master Card, Visa Card and money changers are not functioning in Myanmar. So, it's recommended to find and connect with money transfer agents instead.