SOMPO INSURANCE SINGAPORE PTE. LTD. & Anor v TAY JIA YI & 2 Ors

"An ‘injury by accident’ within the meaning of s 3(1) of the Act requires the Respondents to point to an occurrence in the course of employment that, on a balance of probabilities, caused the injury. The Respondents have failed to discharge their burden of showing this." — Per Ang Cheng Hock J, Para 51

Case Information

• Citation: [2022] SGHC 120 (Para 1)
• Court: In the General Division of the High Court of the Republic of Singapore (Para 1)
• Date: 23 February 2022 (Para 1)
• Coram: Ang Cheng Hock J (Para 1)
• Case Numbers: Tribunal Appeal Nos 15 and 17 of 2021 (Para 59)
• Counsel for the applicants in TA 15/2021: Mahendra Prasad Rai (Cooma & Rai) (Para 59)
• Counsel for the respondents in TA 15/2021 and the applicants in TA 17/2021: Pang Khin Wee (Hoh Law Corporation) (Para 59)
• Area of Law: Employment Law — Work Injury Compensation Act (Para 1)
• Judgment Length: Not answerable from the extraction

What was the dispute in Sompo Insurance Singapore Pte Ltd v Tay Jia Yi about?

This appeal concerned whether the late Mr Tay’s fatal heart attack was compensable under the Work Injury Compensation Act, in particular whether it amounted to “personal injury by accident arising out of and in the course of the employment.” The High Court was asked to review the Assistant Commissioner’s decision that the claim succeeded and that the employers and insurer were liable to pay compensation. (Para 1, Para 20, Para 31)

The factual setting was tragic but legally focused: Mr Tay had pre-existing risk factors, had experienced chest pains before the incident date, went to work on 20 October 2018, later attended the Pasir Ris Clinic, and then suffered cardiac arrest at Changi General Hospital before dying. The court’s task was not to decide whether the death was unfortunate, but whether the statutory requirements were met on the evidence. (Para 3, Para 31)

The High Court allowed the appeal, set aside the compensation order, and dismissed the cross-appeal on costs. The court’s core conclusion was that the respondents had not proved any occurrence in the course of employment that caused the heart attack, and the medical evidence pointed instead to the heart attack having begun before Mr Tay arrived at work. (Para 51, Para 55, Para 58)

"The central question in contention in TA 15/2021 is whether, given the circumstances of this case, the heart attack suffered by Mr Tay falls within the scope of s 3(1) of the Act, such that the Applicants are liable to compensate the Respondents." — Per Ang Cheng Hock J, Para 31

How did the court summarise the material facts leading to Mr Tay’s death?

The court recorded that Mr Tay was employed by SM Laundry on 5 June 2017 as a driver and was promoted on 1 April 2018 to operations supervisor. The judgment also noted that he had pre-existing risk factors, which formed part of the medical and factual background against which the claim had to be assessed. (Para 2)

On the date of incident, the court found that Mr Tay had suffered intermittent chest pains, breathlessness, and reduced effort tolerance over the preceding three to four days. The judgment further recorded that at around 7.00am on the incident date, he experienced an onset of chest pains. These findings mattered because they anchored the medical timeline before the workday had properly begun. (Para 3)

The court also noted that Mr Tay arrived at his workplace at around 9.00am and told Mr Lim that he was experiencing chest pains. Mr Lim told him to seek medical attention immediately, but Mr Tay declined. He later went to the Pasir Ris Clinic, and thereafter suffered cardiac arrest at 12.47pm at Changi General Hospital, was resuscitated at 12.52pm, and passed away at 1.56pm after a second cardiac arrest. (Para 3)

"Mr Tay was employed on 5 June 2017 by SM Laundry as a driver. On 1 April 2018, he was promoted to the position of operations supervisor" — Per Ang Cheng Hock J, Para 2

"Over the course of the three to four days prior to the Date of Incident, Mr Tay suffered intermittent episodes of chest pains, breathlessness and decrease in effort tolerance. On the Date of Incident, at around 7.00am, he experienced an onset of chest pains." — Per Ang Cheng Hock J, Para 3

"He arrived at his workplace at around 9.00am, whereupon he told Mr Lim that he was experiencing chest pains. Mr Lim told him to seek medical attention immediately. However, Mr Tay declined to do so." — Per Ang Cheng Hock J, Para 3

"There, he suffered a cardiac arrest at 12.47pm. He was resuscitated at 12.52pm, but unfortunately passed away at 1.56pm after suffering a second cardiac arrest." — Per Ang Cheng Hock J, Para 3

What statutory provisions governed liability and the appeal?

The principal liability provision was s 3(1) of the Work Injury Compensation Act, which imposes liability where personal injury by accident arising out of and in the course of employment is caused to an employee. The court also referred to the equivalent wording in s 7(1) of the Work Injury Compensation Act 2019, though the appeal itself was decided under the earlier Act. (Para 5)

Section 3(6) was important because it creates a presumption: where an accident arises in the course of employment, it is deemed, absent evidence to the contrary, to have arisen out of that employment. The court’s analysis turned on whether the presumption was even engaged, which depended on whether there had first been an accident in the course of employment. (Para 19, Para 32)

For appellate jurisdiction, the court noted that s 29 permits appeals from orders of the Commissioner for Labour or an Assistant Commissioner where a substantial question of law is involved and the amount in dispute is not less than $1,000. That statutory gateway mattered because the appeal was framed around whether the Assistant Commissioner had erred in law in applying the statutory test. (Para 22)

"If in any employment personal injury by accident arising out of and in the course of the employment is caused to an employee, his employer shall be liable to pay compensation in accordance with the provisions of [the Act]" — Per Ang Cheng Hock J, Para 5

"For the purposes of this Act, an accident arising in the course of an employee’s employment shall be deemed, in the absence of evidence to the contrary, to have arisen out of that employment." — Per Ang Cheng Hock J, Para 19

"Under s 29 of the Act, orders made by the Commissioner for Labour or an Assistant Commissioner (Work Injury Compensation) are subject to appeals where a ‘substantial question of law’ is involved in the appeal and the amount in dispute is not less than $1,000." — Per Ang Cheng Hock J, Para 22

How did the court frame the legal issues on appeal?

The court identified the central question as whether Mr Tay’s heart attack fell within s 3(1) of the Act so as to make the applicants liable to compensate the respondents. That framing shows the court approached the case as a statutory causation dispute, not merely a medical chronology dispute. (Para 31)

The court also identified an interconnected issue: whether the Assistant Commissioner had erred in finding that there had been an accident arising in the course of employment, thereby triggering the presumption in s 3(6). This was critical because if the presumption was not triggered, the respondents had to prove the “out of” and “in the course of” elements without assistance. (Para 32)

In practical terms, the court’s framing required it to decide whether there was any work-related occurrence between Mr Tay’s arrival at work and his later collapse that could properly be characterised as the accident causing the injury. The court’s answer to that question ultimately determined the appeal. (Para 31, Para 32, Para 45)

"Another interconnected issue that arises is whether the AC had erred in determining that there had been an accident that arose in the course of Mr Tay’s employment, such that the presumption in s 3(6) of the Act was triggered" — Per Ang Cheng Hock J, Para 32

What did each side argue about whether Mr Tay’s heart attack was work-related?

The applicants argued that s 3(1) was not established because the respondents could not show that Mr Tay had suffered an injury by an accident arising out of and in the course of employment. Their position was that the evidence did not identify any work-related occurrence that caused the heart attack, and that the medical timeline pointed to the onset beginning before work. (Para 28, Para 51)

The respondents, by contrast, contended that on a balance of probabilities Mr Tay’s heart attack likely started while he was at work between 9.00am and 10.00am on the incident date. They also argued that his underlying conditions could not be shown to be the sole cause of death, suggesting that work stress or the phone call were relevant causal factors. (Para 29)

The court’s reasoning shows that these competing positions were not treated as equally persuasive. The applicants’ case was supported by the absence of evidence of any work-related event during the relevant period, while the respondents’ case depended on inference and expert speculation rather than direct factual proof of what happened at work. (Para 45, Para 48, Para 53)

"The Applicants argue that s 3(1) of the Act is not established because the Respondents are unable to show that Mr Tay had indeed suffered an injury by an accident that had arisen out of and in the course of his employment." — Per Ang Cheng Hock J, Para 28

"The Respondents contend that, on a balance of probabilities, Mr Tay’s heart attack likely started while he was at work between 9.00am to 10.00am on the Date of Incident." — Per Ang Cheng Hock J, Para 29

"As such, Mr Tay’s underlying conditions cannot be shown to be the sole cause of his death." — Per Ang Cheng Hock J, Para 29

Why did the court say an “injury by accident” requires more than an unexpected medical event?

The court explained that the statutory phrase “injury by accident” requires proof of some occurrence in the course of employment that caused the injury. It was not enough to say that the injury was unexpected or that it happened while the employee was at work. The court treated this as the governing legal principle for the case. (Para 35, Para 42)

In developing that principle, the court relied on the authorities it had discussed, including Ormond and Hawkins, to emphasise that mere wear and tear or a spontaneous medical event is not enough. The court stated that the worker must be shown to have been doing something relating to his work that caused the injury. (Para 35, Para 38, Para 39, Para 42)

The court also made clear that the occurrence need not be the sole or dominant cause; it is enough if it is an operating or contributory cause. But that more generous causation standard still requires proof of an actual occurrence in the course of employment. The respondents failed at that threshold requirement. (Para 35, Para 45, Para 51)

"In my judgment, the passages in Ormond and Hawkins which I have just cited go to establish the important principle that to come within the Act, it must be shown that there was some occurrence which caused the injury in question. Thus, mere wear and tear would not constitute an accident." — Per Ang Cheng Hock J, Para 35

"However, the occurrence need not be the sole or even the dominant cause. It will be sufficient to show that the accident was an operating or contributory cause of the injury." — Per Ang Cheng Hock J, Para 35

"It must be shown that the worker was doing something, relating to his work, which was a cause of his injury. It is insufficient to say that there was an ‘accident’ simply because it was unexpected that the injury had occurred." — Per Ang Cheng Hock J, Para 42

How did the court treat the evidence about what happened between 9.00am and 10.00am?

The court placed significant weight on the fact that Mr Lim’s testimony was the only evidence about what happened during the hour or so that Mr Tay spent at the workplace. No co-workers or other witnesses were called by the respondents to say what Mr Tay was doing during that period. That evidential gap was fatal because the respondents needed to identify some work-related occurrence. (Para 45)

On the evidence before it, the court concluded that the respondents were unable to show that Mr Tay was doing anything in relation to his work while at the workplace, let alone anything significant that might have triggered the heart attack. Without that factual foundation, the statutory requirement of an occurrence in the course of employment was not met. (Para 45)

The court’s analysis therefore did not rest on a rejection of all medical evidence in the abstract; rather, it rested on the absence of factual proof connecting the workplace period to the onset or triggering of the injury. The court treated that absence as decisive on liability. (Para 45, Para 51)

"Mr Lim’s testimony was the only evidence as to what happened during that hour or so that Mr Tay spent at the workplace. No co-workers or other witnesses were called by the Respondents to give evidence as to what Mr Tay was doing during the hour that he was at the workplace." — Per Ang Cheng Hock J, Para 45

"Since the Respondents are unable to show that Mr Tay was doing anything in relation to his work while he was at the workplace on the Date of Incident, let alone anything significant that might have triggered his heart attack, they are accordingly unable to show that there was an occurrence in the course of employment that resulted in the ‘injury by accident’ within the meaning of s 3(1) of the Act." — Per Ang Cheng Hock J, Para 45

Why did the court reject the respondents’ reliance on expert medical evidence?

The court considered the expert evidence, including Dr Singh’s opinion, but found that much of it was speculative and unsupported by the available factual evidence. The court expressly noted that many of the applicants’ criticisms of Dr Singh were justifiable. This was important because expert opinion cannot fill a factual vacuum where the underlying events are not proved. (Para 48)

The court also relied on the clinical notes from the Pasir Ris Clinic, as explained by Dr Lye, which recorded that Mr Tay’s chest pains started at 7.00am and continued until he visited the clinic at around 10.54am. That evidence supported the applicants’ case that the heart attack had already begun before Mr Tay arrived at work at 9.00am. (Para 53)

In the court’s view, the Assistant Commissioner had effectively disregarded this medical and factual evidence. The High Court considered that to be an error because the evidence pointed away from a work-triggered onset and toward a pre-work onset of the heart attack. (Para 55)

"In my judgment, many of the criticisms by the Applicants are justifiable. Dr Singh’s evidence was in many ways speculative and unsupported by the available factual evidence." — Per Ang Cheng Hock J, Para 48

"The clinical notes from the Pasir Ris Clinic, as explained in Dr Lye’s testimony, record that Mr Tay experienced chest pains that started at 7.00am till he visited the Pasir Ris Clinic around 10.54am on the Date of Incident." — Per Ang Cheng Hock J, Para 53

"In my judgment, the AC seems to have disregarded all this evidence, both medical and factual, which clearly showed that Mr Tay’s heart attack commenced before he even came to work on 9.00am." — Per Ang Cheng Hock J, Para 55

How did the court deal with the statutory presumption in s 3(6)?

The court treated the presumption in s 3(6) as dependent on the threshold showing that there had been an accident arising in the course of employment. If that threshold is not met, the presumption does not assist the claimant. In this case, the court concluded that the respondents had not shown any such accident in the first place. (Para 19, Para 32, Para 45)

Because the respondents could not identify a work-related occurrence during the relevant period, the court held that the presumption was not triggered. The court therefore did not need to use the presumption to bridge any evidential gap in favour of the respondents. (Para 32, Para 45, Para 51)

This aspect of the judgment is significant because it clarifies that the presumption cannot substitute for proof of an occurrence in the course of employment. The claimant must still establish the factual foundation that brings the presumption into play. (Para 19, Para 32, Para 45)

"Another interconnected issue that arises is whether the AC had erred in determining that there had been an accident that arose in the course of Mr Tay’s employment, such that the presumption in s 3(6) of the Act was triggered" — Per Ang Cheng Hock J, Para 32

Which authorities did the court rely on, and how were they used?

The court referred to NTUC Income Insurance Co-operative Ltd and another v Next of kin of Narayasamy s/o Ramasamy, deceased as the main authority relied on by the Assistant Commissioner. It also discussed Allianz Insurance Co (Singapore) Pte Ltd v Ma Shoudong for the meaning of “in the course of employment.” These authorities formed the background to the court’s own interpretation of the statutory language. (Para 17, Para 18)

The court then turned to Ng Eng Ghee and Edwards v Bairstow in discussing the appellate standard for a “point of law” and when an appellate court may intervene if no judicially instructed person could have reached the decision under appeal. That discussion supported the court’s willingness to scrutinise whether the Assistant Commissioner had applied the correct legal test to the facts. (Para 23, Para 24)

On the substantive compensation question, the court relied on Ormond v CD Holmes & Co, Ltd, Hawkins v Powells Tillery Steam Coal Company, Limited, Secretary of State for Work and Pensions v James Scullion, and Chua Jian Construction and another v Zhao Xiaojuan. Those cases were used to reinforce the distinction between a compensable occurrence and a mere medical event, and to show that evidence of something transpiring at work is required. (Para 38, Para 39, Para 40, Para 41)

"The AC, relying mainly on the case of NTUC Income Insurance Co-operative Ltd and another v Next of kin of Narayasamy s/o Ramasamy, deceased [2006] 4 SLR(R) 507 (‘Narayasamy’)" — Per Ang Cheng Hock J, Para 17

"For requirement (c), the AC relied on Allianz Insurance Co (Singapore) Pte Ltd v Ma Shoudong [2011] 3 SLR 1167 (‘Ma Shoudong’) for the meaning of ‘in the course of employment’." — Per Ang Cheng Hock J, Para 18

"In Ng Eng Ghee and others v Mamata Kapilev Dave and others (Horizon Partners Pte Ltd, intervener) and another appeal [2009] 3 SLR(R) 109 (‘Ng Eng Ghee’), the Court of Appeal considered that an appeal against a decision of a Strata Titles Board formed under the Building Maintenance and Strata Management Act 2004, which only permits appeals on a ‘point of law’, as being synonymous with permitting appeals only where the Board has made an error of law." — Per Ang Cheng Hock J, Para 23

"the Court of Appeal went on to endorse the view that an appeal on a ‘point of law’ would also be allowed if the facts found were such that no person acting judicially and properly instructed as to the relevant law could have come to the determination under appeal: Ng Eng Ghee at [95], agreeing with the view expressed by the House of Lords in Edwards v Bairstow [1956] AC 14 (‘Edwards’)." — Per Ang Cheng Hock J, Para 24

"In Ormond v CD Holmes & Co, Ltd [1937] 2 All ER 795 (‘Ormond’), the English Court of Appeal dismissed a claim for compensation" — Per Ang Cheng Hock J, Para 38

"In Hawkins v Powells Tillery Steam Coal Company, Limited [1911] 1 KB 988, an elderly man working in a colliery had been helping to push some empty trucks up an incline." — Per Ang Cheng Hock J, Para 39

"Aikens LJ emphasised the ‘necessary distinction between ‘accident’ and ‘injury’’ (Scullion at [44])" — Per Ang Cheng Hock J, Para 40

"In Chua Jian, a construction site worker was found lying motionless on the ground at his work site." — Per Ang Cheng Hock J, Para 41

Why did the Assistant Commissioner’s compensation order not survive appeal?

The Assistant Commissioner had ordered the applicants to pay $204,000 in compensation and $5,000 in costs, having concluded that the requirements under s 3(1) were satisfied. The High Court disagreed because the respondents had not proved the necessary occurrence in the course of employment. (Para 1, Para 20, Para 45, Para 51)

The High Court’s reasoning was that the Assistant Commissioner had accepted a theory of liability without sufficient factual support. In particular, the court considered that the evidence showed the heart attack had commenced before Mr Tay arrived at work, which undermined the premise that a workplace occurrence caused the injury. (Para 53, Para 55)

Once the compensation order fell, the costs order also had to fall. The court therefore set aside the entire determination and dismissed the respondents’ cross-appeal. (Para 57, Para 58)

"As all three requirements under s 3(1) of the Act were satisfied, the AC concluded that the claim was made out and ordered the Applicants to pay to the Respondents $204,000 in compensation and $5,000 as costs." — Per Ang Cheng Hock J, Para 20

"For the reasons set out above, the Applicants’ appeal in TA 15/2021 is allowed, and the AC’s determination is set aside in its entirety. The Respondents are not entitled to compensation under s 3(1) of the Act. Consequently, the Respondents’ appeal in TA 17/2021 is dismissed." — Per Ang Cheng Hock J, Para 58

What happened to the costs order and the cross-appeal?

The Assistant Commissioner had awarded costs of $5,000 to the respondents together with the compensation sum. The High Court held that because the compensation order could not stand, the costs order in the respondents’ favour also had to be set aside. (Para 1, Para 57)

The court therefore dismissed the respondents’ appeal in TA 17/2021. The result was that the respondents obtained neither compensation nor the costs order they had secured below. (Para 57, Para 58)

This outcome followed as a matter of course from the court’s substantive conclusion on liability. The court did not need to conduct a separate costs analysis once it had determined that the claim itself failed. (Para 57, Para 58)

"Given my views in relation to TA 15/2021, and that the AC’s order for compensation should be set aside, it follows as a matter of course that the order of costs made by the AC in favour of the Respondents should also be set aside." — Per Ang Cheng Hock J, Para 57

Why does this case matter for Work Injury Compensation Act claims?

This case is important because it clarifies that a claimant under s 3(1) must prove more than the fact that a medical emergency occurred at or around work. The claimant must identify an occurrence in the course of employment that caused the injury, and the court will not infer that occurrence merely from the timing of the collapse. (Para 35, Para 42, Para 45, Para 51)

The case also shows the limits of expert evidence in work injury disputes. Even where medical experts are called, their opinions must be anchored in proved facts. Where the factual evidence does not show what the employee was doing at work, expert speculation cannot establish the statutory causal link. (Para 45, Para 48, Para 53)

For practitioners, the decision underscores the importance of witness evidence from the workplace, contemporaneous medical records, and a coherent chronology. It also confirms that the s 3(6) presumption is not a substitute for proof that an accident occurred in the course of employment in the first place. (Para 19, Para 32, Para 45, Para 55)

"It must be shown that the worker was doing something, relating to his work, which was a cause of his injury. It is insufficient to say that there was an ‘accident’ simply because it was unexpected that the injury had occurred." — Per Ang Cheng Hock J, Para 42

"The Respondents have failed to discharge their burden of showing this." — Per Ang Cheng Hock J, Para 51

Cases Referred To

What legislation did the court reference?

• Work Injury Compensation Act (Cap 354, 2009 Rev Ed), s 3(1) (Para 5)
• Work Injury Compensation Act (Cap 354, 2009 Rev Ed), s 3(6) (Para 19)
• Work Injury Compensation Act (Cap 354, 2009 Rev Ed), s 29 (Para 22)
• Work Injury Compensation Act 2019 (2020 Rev Ed), s 7(1) (Para 5)
• Building Maintenance and Strata Management Act 2004, referenced in discussion of Ng Eng Ghee (Para 23)
• Workmen’s Compensation Act 1925, referenced in discussion of Ormond (Para 38)
• Workmen’s Compensation Act 1906, referenced in discussion of Hawkins (Para 39)
• Social Security Act 1998 and Social Security Contributions and Benefits Act 1992, referenced in discussion of Scullion (Para 40)

Why is the judgment’s reasoning on causation practically significant?

The judgment is practically significant because it insists on a disciplined causation analysis in work injury claims. A claimant must prove not only that an injury happened during working hours, but that some occurrence in the course of employment caused it. That distinction is especially important in cases involving heart attacks or other internal medical events, where the temptation may be to infer work causation from timing alone. (Para 35, Para 42, Para 45)

The decision also warns against over-reliance on expert evidence where the factual matrix is thin. The court’s criticism of Dr Singh as speculative shows that medical opinion must be tethered to evidence of what the employee actually did at work. Without that factual anchor, the opinion cannot establish the statutory test. (Para 48, Para 53, Para 55)

For employers, insurers, and claimants alike, the case demonstrates the importance of contemporaneous workplace evidence, witness testimony, and medical records that can accurately locate the onset of symptoms. The court’s conclusion that the heart attack had commenced before Mr Tay arrived at work was decisive because it severed the causal link required by the Act. (Para 3, Para 45, Para 53, Para 55, Para 58)

"The clinical notes from the Pasir Ris Clinic, as explained in Dr Lye’s testimony, record that Mr Tay experienced chest pains that started at 7.00am till he visited the Pasir Ris Clinic around 10.54am on the Date of Incident." — Per Ang Cheng Hock J, Para 53

"In my judgment, the AC seems to have disregarded all this evidence, both medical and factual, which clearly showed that Mr Tay’s heart attack commenced before he even came to work on 9.00am." — Per Ang Cheng Hock J, Para 55

"For the reasons set out above, the Applicants’ appeal in TA 15/2021 is allowed, and the AC’s determination is set aside in its entirety. The Respondents are not entitled to compensation under s 3(1) of the Act. Consequently, the Respondents’ appeal in TA 17/2021 is dismissed." — Per Ang Cheng Hock J, Para 58

Source Documents

• Original Judgment — Singapore Courts
• Archived Copy (PDF) — Litt Law CDN

This article analyses [2022] SGHC 120 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.