Have you heard of 'The history of China':
The exact number of famine deaths is difficult to determine, and estimates range from upwards of 30 million, to 55 million people. Because of the uncertainties involved in estimating famine deaths caused by the Great Leap Forward or any famine, it is difficult to compare the severity of different famines. However, if a low estimate of 30 million deaths is accepted, the Great Leap Forward was the deadliest famine in the history of China and in the history of the world.
During 1958–1960 China continued to be a substantial net exporter of grain, despite the widespread famine experienced in the countryside, as Mao sought to maintain face and convince the outside world of the success of his plans. Foreign aid was refused. When the Japanese foreign minister told his Chinese counterpart Chen Yi of an offer of 100,000 tonnes of wheat to be shipped out of public view, he was rebuffed.