SEOUL (Reuters) - Algerian state-run Sonatrach has cancelled a tanker arrangement to move 50,000 tonnes of naphtha from the country to Asia on July 22, two industry sources said on Tuesday.

The reason for the cancellation was not immediately known.

Asia was expected to receive a total of 412,000 tonnes of naphtha in August with the Sonatrach shipment, up from 175,000 tonnes arriving July.