China looked further to tighten supervision over its battered online education sector. China's move indicated its lack of preparation to unshackle the private tutoring arena despite loosening curbs on tech giants, Bloomberg reports. Edtech companies plunged after the Ministry of Education published a new set of restrictions that limit the fees and operating times of private tutoring services for primary and middle school students. Also Read: Tencent Cuts Stake In This Chinese Edtech Firm Firms o