Shanghai Xizhi Technology (HKG:1879) said the overallotment option of its Hong Kong initial public offering was fully exercised on Monday, according to a same-day Hong Kong bourse filing.

The optoelectronic computing company expects to receive additional net proceeds of about HK$363.9 million.

The exercise involved the issue of 2.1 million additional shares at HK$183.20 each, representing about 15% of the total offer shares available under the global offering.

Dealings in the over-allotment shares are expected to begin on May 14, the filing said.