Kianoush Rostami says he is "returning my Olympic gold medal to my people".
Russia and China are among nine countries to be given a one-year ban from international weightlifting for doping after a retesting programme.
The 15-year-old had been attempting to bench press almost 100kg (220 lb), local media said.
Eleven Olympic and Paralympic sports 'thrown under the bus' in funding cuts last year have had a "positive" meeting with UK Sport chair Katherine Grainger.
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Defiant breast cancer patient prepares for World's Strongest Woman contest.
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