Siengine, a Chinese chipmaker developing auto-grade semiconductors for in-car systems, said on Tuesday that it has raised almost RMB 1 billion (roughly $150 million) in a Series A led by Sequoia Capital China, without disclosing the valuation. This comes just four months after the Wuhan-based chip startup, launched by Geely founder Li Shufu, closed an undisclosed amount in strategic funding from state-owned automaker FAW Group. Other investors in this round include Chinese tech firm Neusoft and Boyuan Capital, a venture capital arm of German auto giant Bosch. [Siengine release, in Chinese]