Possible Clues:

• The Orient Express carried a lot of engineers
• China, Japan and more regions covered in feet
• China and Japan, say, as after reforms
• Food adds a stone in some Asian countries
• China and Japan's region
• Area that includes China, Mongolia, Korea, Japan and most of Siberia
• China and Japan etc are parting quickly
• Eurocentric name for Thailand's region
• Newspaper covering fields of study in distant countries
• China and Japan, for example (2 words)