Guilin Sanjin Pharmaceutical Co, China’s biggest producer of herbal lozenges, received bids from investors for 584 times the number of shares available in the electronic tranche of the country’s first initial public offering this year, reports Bloomberg in Beijing.

The Guilin, southwestern China-based company offered 36.8m shares to individuals and institutional investors through the so-called online offer, according to a filing to the Shenzhen Stock Exchange on Tuesday.