Lenovo’s net profit grew 25% year-over-year in the first quarter as the Chinese company continued to make gains in the PC and smartphone markets. During the period ended March 31, Lenovo’s net profit reached US$158 million, up from $127 million a year earlier. The company’s revenue also increased, by 19% to $9.4 billion. Lenovo has risen to become the world’s largest PC company, helped by sales in its home market of China. But the company is also focusing on tablets and smartphones to grow revenue.