JK Synapse
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
JK Synapse makes specialty chemicals used in semiconductor and display manufacturing, such as photoresists, etching solutions, cleaning fluids, and surface-treatment agents for chip-fabrication equipment, and also produces RFID tags, the small wireless labels that let logistics and retail systems track items without physical contact.
It supplies these products to semiconductor component makers and display manufacturers in Korea and abroad. Listed on KOSDAQ, Korea's tech-focused small-cap board, the company operates across three distinct segments: electronic materials, RFID tags, and real-estate development.
Summary is AI-generated and may contain errors · figures from DART filings
Its RFID business covers the full production chain in-house, from chip bonding and antenna fabrication through to encoding and final inspection, rather than outsourcing individual steps.
JK Synapse in five facts
What does JK Synapse do?
JK Synapse makes specialty chemicals used in semiconductor and display manufacturing, such as photoresists, etching solutions, cleaning fluids, and surface-treatment agents for chip-fabrication equipment, and also produces RFID tags, the small wireless labels that let logistics and retail systems track items without physical contact.
Where is JK Synapse listed and in which sector?
JK Synapse (Korean name: 제이케이시냅스) trades under KRX code 060230 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Materials sector, Chemicals.
How large is JK Synapse?
Its market capitalisation was US$16.5M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were JK Synapse's latest annual revenue and operating profit?
For fiscal year 2025, JK Synapse reported revenue of US$46.7M, an operating loss of US$6.2M and a net loss of US$14M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was up 26.8% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Early redemption of convertible bonds (incl. overseas CBs)Capital raise · Oct 20
- Securities issuance results (voluntary)Capital raise · Oct 16
- DisclosureOct 16
- Subscription results of rights offering or equity-linked bonds (voluntary)Capital raise · Oct 14
- Small public offering disclosure (equity)Oct 8
- Material event report (rights offering)
JK Synapse disclosed a public offering to raise US$1.49M, about 7.7% of its market value.
Capital raise · Oct 8 - Results of extraordinary shareholders' meetingOct 2
- [Amended] Notice of general shareholders' meetingSep 29
- Notice of general shareholders' meetingSep 17
- [Amended] Resolution to convene a general shareholders' meeting (extraordinary meeting)Sep 16
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Sep 10
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Sep 10
- Conversion price adjustmentSep 7
- [Amended] Material event report (decision to sell own convertible bonds)
JK Synapse amended a March 2025 report on its decision to sell its own 25th series convertible bonds, reducing the face amount sold to new buyers from US$2.89M to US$2.78M (sale amount correspondingly reduced to US$2.78M), pushing back the proceeds receipt date to September 30, 2026, and adjusting the conversion price to US$1.02 per share after subsequent conversion-price resets.
Capital raise · Aug 26 - [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$7.24M, about 36.8% of its market value.
Capital raise · Aug 24 - [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$14.5M, about 73.7% of its market value.
Capital raise · Aug 24 - [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$7.08M, about 36.8% of its market value.
Capital raise · Aug 11 - [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$14.2M, about 73.7% of its market value.
Capital raise · Aug 11 - Material event report (decision to sell own convertible bonds)
JK Synapse resold US$637K in face value of previously-reacquired Series 25 convertible bonds for US$658K on 2026-08-11, to raise working capital.
Capital raise · Aug 11 - Early redemption of convertible bonds (incl. overseas CBs)
JK Synapse acquired US$1.19M face value of its Series 32 convertible bonds (issued 2025-05-02, due 2028-05-02) before maturity on 2026-08-03 for US$1.21M, following a bondholder put-option exercise; US$2.31M face value remains outstanding.
Capital raise · Aug 3 - [Amended] Material event report (decision to sell own convertible bonds)
JK Synapse Co., Ltd. (filed under its former name, Sonid Co., Ltd.) amends its March 12, 2025 report on the sale of its own 27th-round convertible bonds, changing the buyer of a US$141K face-value tranche from Kim Ji-young to Victoria No.1 Investment Partnership and pushing the proceeds receipt date from July 31, 2026 to September 11, 2026, while updating the conversion price to US$0.68 per share (3,925,619 shares, 27.34% of total shares) to reflect a share consolidation and a third-party rights offering.
Capital raise · Jul 31 - Change of largest shareholder
JK Synapse's largest shareholder changed on July 28, 2026 from MH Tech Co., Ltd. (1,530,054 shares, 13.59%) to Hyurim Robot Co., Ltd. (3,099,173 shares, 21.58%) following a US$2.06M third-party-placement rights offering for management participation, with the new shares subject to a 1-year lock-up.
Ownership change · Jul 28 - Securities issuance results (voluntary) (third-party placement)
JK Synapse completed a third-party-placement rights offering on July 28, 2026, issuing 3,099,173 common shares for US$2.06M, matching the original board-approved plan from July 20, 2026; listing of the new shares is expected.
Capital raise · Jul 28 - Material event report (rights offering)
JK Synapse disclosed convertible bonds to raise US$2.03M, about 11.1% of its market value.
Capital raise · Jul 20 - Early redemption of convertible bonds (incl. overseas CBs)
JK Synapse Co., Ltd. acquired US$665K face amount of its 31st-series convertible bonds (conversion price adjusted to US$3.07 per share after a 5:1 share consolidation effective June 23, 2026; maturing 2028-04-08) for US$685K including interest on July 8, 2026 following the bondholder's exercise of its put option, leaving none outstanding to third parties.
Capital raise · Jul 8 - [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Jun 25
- Trading suspension (share consolidation/split registration)M&A · Jun 16
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Apr 27
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Apr 23
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Apr 1
- [Amended] Material event report (decision to sell own convertible bonds)Capital raise · Mar 27
- Material event report (decision to sell own convertible bonds)Capital raise · Mar 25
- Trading suspension liftedM&A · Mar 19
- [Amended] Change of 30% or more in revenue or profit/loss structure (15% for large companies)Earnings · Mar 16
- [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$5.11M, about 27.7% of its market value.
Capital raise · Mar 13 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
JK Synapse reported consolidated results for FY2025: revenue of US$43.2M (+26.76% year on year), an operating loss of US$5.27M and a net loss of US$7.32M.
Earnings · Feb 27 - [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$10.4M, about 55.3% of its market value.
Capital raise · Feb 25 - Trading suspension (share consolidation/split registration)M&A · Feb 20
- [Amended] Material event report (convertible bonds)
JK Synapse updated the terms of convertible bonds to raise US$10.4M, about 71.3% of its market value.
Capital raise · Feb 13 - Material event report (decision to sell own convertible bonds)Capital raise · Feb 3