Muscat: China has developed more than 400 humanoid robot systems, accounting for more than half of all such systems developed worldwide in the first half of this year, underscoring the country's rapidly expanding footprint in the emerging market. According to Oman News Agency, Chinese-made four-limb robot systems accounted for roughly 70 percent of global sales during the first six months of the year, the Ministry of Industry and Information Technology said, according to Xinhua. China's integrated circuit exports surged 88 percent year-on-year in the first half of the year, driven by strong demand for AI-related chips, official data showed.