Hong Kong, China share benchmarks soft but on track for best month since 2012
* HSI -0.1 pct, H-shares -0.4 pct, CSI300 +0.2 pct
* Yili rises on reports saying executives bought more shares
* China Resources Land extends gains after Barclays upgrade
* Hong Yuan Securities has surged over 40 pct this week (Updates to midday)
By Grace Li
HONG KONG, July 31 (Reuters) - Hong Kong and China shares, on track for their best month since 2012, had choppy trading in reduced volumes on Thursday as investors remained cautious ahead of release of China's July manufacturing activity survey.
On Friday, the official PMI number for July will come out.
Activity in China's vast factory sector likely expanded at the fastest pace in eight months in July, a Reuters poll showed on Wednesday.
The Hang Seng Index, which has risen the past seven sessions, was off 0.1 percent to 24,701.28 points at midday. The China Enterprises Index of the top Chinese listings in Hong Kong fell 0.4 percent. Continuación...