KCNA picture shows North Korean leader Kim Jong Un smiling during a visit to the Chonji Lubricant Factory

North Korean leader Kim Jong Un smiles during a visit to the Chonji Lubricant Factory, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang August 6, 2014. REUTERS/KCNA (NORTH KOREA - Tags: POLITICS IMAGES OF THE DAY) ATTENTION EDITORS � THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO THIRD PARTY SALES. NOT FOR USE BY REUTERS THIRD PARTY DISTRIBUTORS. SOUTH KOREA OUT. NO COMMERCIAL OR EDITORIAL SALES IN SOUTH KOREA. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS