Wa Lone, 32, and Kyaw Soe Oo, 28, face up to 14 years in jail if convicted under an official secrets law of possessing classified documents about security operations in Rakhine state.
12 Thai boys and football coach give first press conference after being rescued from the Tham Luang cave complex last week.
Hong Kong is governed under a "one country, two systems" principle which promises it a high degree of autonomy and freedoms not enjoyed in China, such as the freedom of speech and freedom of assembly.
Myanmar nationals Wa Lone, 32, and Kyaw Soe Oo, 28, were arrested in December and accused of possessing documents linked to security operations against Rohingya militants in Rakhine state.
A stellar achievement, this story will be remembered as an impressive example of international cooperation.
The 12 boys and their football coach were found nine days after they entered the cave and found themselves stuck because of rising waters. They were all rescued after 17 days inside
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