Japan believes that China's tightening of quarantine measures in April was not made in retaliation for import curbs Japan imposed on some of its farm products, Japanese Trade Ministry officials said Monday.
The Ministry of Economy, Trade and Industry said it surveyed 486 Japanese exporters to China and found only two cases of products that failed to clear Chinese customs since the new quarantine steps took effect.
The new steps require some goods to be shipped in wooden containers to prevent the migration of foreign species of worms and other insects.