Do foreign metal exchanges have an influence on our metal exchange?

DO EXCHANGES LIKE LONDON METAL EXCHANGE , HONGKONG METAL EXCHANGE , ETC HAVE ANY KIND OF RELATION / INFLUENCE ON OUR MARKET S ?

IS THERE ANY USE USE FOLLOWING THESE MARKETS TO SPECULATE IN OUR DOMESTIC MARKETS ?

I will tell you one thing, indian market is the best example of copy cat market in the world, world increases india increase , world falls india falls, our market cannot make decision on its own because daily volumes on our market are mainly from foreign invrstors, now about your question , yes they are “MECCA” of metals trading , they effect very much

this " copy cat " effect is visible instantly or with a certain time gap ?
means if today copper falls in LME with intraday loss of 40 points .

  1. will the downfall immediately reflect indian market tommorrow itself … and with the same point gap ?
  2. there are many big exchanges like LONDON METAL EXCHANGE , HONGKONG METAL EXCHANGE , USA EXCHANGES … which one has the most influence & which one should we keep an eye on ?
  3. does any exchange of arab world have its influence on indian markets ?