NEW DELHI: The government has imposed a five-year anti-dumping duty on import of optical fiber from countries such as China, Korea and Indonesia, after finding them selling at “below normal values” to the detriment of players making in India such as Sterlite Technologies, Birla Furukawa Fibre and American Corning.The Finance Ministry issued the anti-dumping order following the finding to this effect by Directorate General of Trade Remedies – the investigative wing of the Commerce Ministry – which had recommended the action.According to the findings of the investigation, the...