Desmond KohChief Operating Officer · Essays & perspective

Desmond Koh · Chief Operating Officer · Singapore / Southeast Asia

Six roles between the cold room and the store

01

Apr 2019 — Present

Chief Operating Officer

Rumbia Food Group Limited

Sector
Bakery chains, cafés and food halls, with central kitchens and a master-franchised bakery network in Thailand
Ownership
Listed on the SGX Mainboard since 2007; the founding Seow family holds 48 per cent
Company scale
S$642 million revenue and S$88 million EBITDA in the year to December 2025
Employees
7,600
Geography
Singapore and Malaysia, with 279 company-operated outlets; master franchisee in Thailand; kitchens at Senai, Johor and Senoko, Singapore
Reporting to
Reports to the group chief executive officer; presents to the board and reports to the Audit and Risk Committee
Team
About 6,900 across outlets, kitchens, logistics, procurement, facilities and food safety; nine direct reports
Financial scope
Operating cost base of about S$430 million; annual capital expenditure of S$30–45 million; procurement spend of S$196 million

Mandate

Run every outlet, kitchen and lorry in the group to a common standard, protect food safety across three formats and lift operating margin without hollowing out the workforce.

Outcomes

  • Repaid RM2.06 million in recruitment fees to 412 migrant workers; their attrition fell from 34 per cent to 11 per cent.
  • Opened the S$19 million Senoko chilled kitchen in January 2025; transit discards fell from S$640,000 to S$90,000 a year.
  • Moved delivery contribution from minus 1.8 per cent of delivery sales in 2022 to 8.6 per cent in 2024.
  • Reset the Thai franchise network; audit pass rate rose from 71 to 96 per cent of outlets.
  • Cut bakery waste in 40 trial outlets from 9.4 to 6.1 per cent of production value.

Decisions in context

Joanne Seow asked me to become chief operating officer in April 2019, after I had spent four and a half years building Rumbia's production and supply chain. The role brought outlets, food halls, kitchens, logistics, procurement, facilities and food safety under one person for the first time. Within a year the pandemic closed our food halls for weeks, shut the border with Malaysia and confined our migrant workers to crowded hostels, and much of my early tenure was spent keeping bakeries supplied while learning what our operating model had been hiding. The recruitment-fee repayment, the Senoko kitchen, the delivery reset and the Thai franchise reset all followed from that period. I lead about 6,900 people through nine direct reports, present to the board each quarter and report on food safety and operational risk to the Audit and Risk Committee. Revenue has grown from S$486 million in 2019 to S$642 million in 2025.

Reason for the move

Current role. Not seeking an executive move; considering one independent directorship with the Rumbia board's consent.

02

Sept 2014 — Mar 2019

Director, Central Kitchens and Supply Chain

Rumbia Food Group Limited

Sector
Bakery chains, cafés and food halls
Ownership
Listed on the SGX Mainboard; Seow family control
Company scale
S$468 million revenue in 2018
Employees
6,300
Geography
Singapore and Malaysia; kitchens in Singapore and Shah Alam, replaced by Senai from 2016
Reporting to
Reports to the group chief executive officer
Team
About 1,450 across kitchens, warehousing and transport; six direct reports
Financial scope
Senai construction budget of RM186 million; production and logistics cost of about S$120 million a year

Mandate

Replace three ageing kitchens with one modern facility and give the group a supply chain able to support growth in Malaysia.

Outcomes

  • Opened the Senai central kitchen in September 2016 within its RM186 million budget.
  • Cut unit production costs by 19 per cent and exited two Singapore kitchen leases.
  • Obtained halal certification for Senai within its first year of operation.
  • Built a fleet of 58 refrigerated lorries with continuous temperature logging.

Decisions in context

Rumbia hired me to fix production. In 2014 the group made its products in three kitchens: two cramped Singapore sites on short leases and an older plant in Shah Alam. Quality varied between them, and none had room for the Malaysian growth the board wanted. I designed a single central kitchen at Senai in Johor, chose the site for its access to both border crossings and to Malaysian outlets, and opened it in September 2016 within a RM186 million budget. Unit production costs fell 19 per cent, we left the Singapore leases and the kitchen was halal-certified within its first year. I also built our refrigerated fleet and the temperature-logging system that every lorry still carries. The weakness in the design, which I did not see then, was that it routed every chilled product for Singapore through one overnight border crossing. That became my problem to solve seven years later.

Reason for the move

Promoted to chief operating officer.

03

Mar 2010 — Aug 2014

Head of Operations

Simpang Mart Sdn. Bhd.

Sector
Convenience stores with ready-to-eat food and bill-payment services
Ownership
Privately held subsidiary of a Malaysian family-owned diversified group
Company scale
RM1.1 billion system sales in 2013
Employees
2,100 company employees; about 3,000 more in franchised stores
Geography
Peninsular Malaysia, head office in Petaling Jaya; 410 stores, 270 of them franchised
Reporting to
Chief Executive Officer
Team
About 1,600 in company stores and field operations; seven direct reports
Financial scope
Operating budget for 140 company stores; franchise standards and support for 270 franchised stores

Mandate

Make the franchised network profitable for franchisees as well as the franchisor, and introduce a chilled ready-to-eat range.

Outcomes

  • Raised the franchise renewal rate from 78 to 91 per cent.
  • Reduced shrink from 2.6 to 1.7 per cent of sales.
  • Launched a chilled ready-to-eat range in 300 stores with a three-day shelf life.
  • Cut the number of franchisees in arrears on supplier payments by more than half.

Decisions in context

Simpang Mart ran 410 convenience stores across Peninsular Malaysia, 270 of them owned by franchisees. When I arrived, about a fifth of franchisees were behind on their payments to us, and renewal rates were falling. I spent my first months in stores, mostly at night, and found that many decisions taken in Petaling Jaya, such as longer opening hours, wider ranges and more frequent promotions, raised the franchisor's revenue while squeezing the franchisee's cash. We rebuilt the franchise support model around each store's monthly cash flow, cut low-selling lines and changed delivery days to reduce stockholding. We also launched a chilled ready-to-eat range with a three-day shelf life, which taught me how unforgiving a short shelf life is in a hot country. Franchise renewals rose from 78 to 91 per cent and shrink fell from 2.6 to 1.7 per cent of sales.

Reason for the move

Recruited to build a food group's central kitchen and supply chain in Singapore, closer to my ageing parents.

04

Sept 2005 — Feb 2010

Production Manager, later Plant Manager

Kayu Manis Frozen Foods Pte. Ltd.

Sector
Frozen dumplings, buns and dim sum for supermarkets, caterers and export
Ownership
Family-owned private company
Company scale
S$58 million revenue in 2009
Employees
420
Geography
One plant in Woodlands, Singapore; export customers in Hong Kong and Australia
Reporting to
Managing Director
Team
About 340 by 2008; five direct reports
Financial scope
Plant operating budget of about S$21 million; capital projects up to S$4 million

Mandate

Bring the plant to the food-safety standard export customers required and raise output without a second site.

Outcomes

  • Built the plant's hazard-analysis and critical-control-point system and passed an export customer's re-audit in 2007.
  • Raised output by 38 per cent within the existing building.
  • Reduced product rejected at final inspection from 4.2 to 1.6 per cent.
  • Managed a single-batch labelling recall in 2008 within 36 hours.

Decisions in context

Kayu Manis was a family-owned frozen-food maker in Woodlands, selling dumplings, buns and dim sum to Singapore supermarkets, caterers and two export markets. I joined as production manager and became plant manager in 2008. In my first year an export customer's audit failed us on our hazard controls, and I rebuilt the system from the hazard analysis upwards, with the plant's own supervisors writing the procedures. We passed the re-audit in 2007. Output rose 38 per cent within the same building through better line balancing and a second freezing tunnel. In 2008 a supplier changed a sauce recipe without telling us, a label went out wrong on one batch, and I learnt how a recall is run: who decides, who is told, and how quickly. I completed my part-time master's degree here, in the evenings. I left to run a network of stores rather than one plant.

Reason for the move

Wanted to run a retail network rather than a single plant.

05

Apr 2002 — Aug 2005

Process Engineer, later Shift Production Manager

Teraju Flour Mills Pte. Ltd.

Sector
Flour milling for bakeries, noodle makers and food manufacturers
Ownership
Private company owned by a regional commodities group
Company scale
S$140 million revenue in 2004
Employees
260
Geography
One mill in Jurong, Singapore; customers in Singapore and Malaysia
Reporting to
Mill Manager
Team
About 45 per shift as shift production manager
Financial scope
No budget authority; responsible for shift output and maintenance priorities

Mandate

Improve milling efficiency and run a production shift safely.

Outcomes

  • Raised flour extraction by 1.2 percentage points through roller and sifter changes.
  • Reduced energy use per tonne by 9 per cent.
  • Led the mill's dust-control improvements after a review of ignition risks.

Decisions in context

I joined Teraju Flour Mills in Jurong as a process engineer because I wanted to run machinery, not install it and leave. A flour mill rewards small improvements: a change to roller settings or sifter screens can add a fraction of a percentage point to extraction, and on a mill's volume that is real money. Over two years we raised extraction by 1.2 percentage points and cut energy per tonne by 9 per cent. I also led a review of dust control after a near-miss in a conveying line, because flour dust in the wrong concentration can ignite, and the changes we made became standard across the mill. In 2004 I became a shift production manager, leading about 45 people on rotating shifts, many on work permits from across the region. They taught me more about the equipment than my degree had. I left to work closer to finished food.

Reason for the move

Wanted to work closer to finished food and the people who buy it.

06

Jul 1999 — Mar 2002

Project Engineer

Polarstead Refrigeration Engineering Pte. Ltd.

Sector
Commercial refrigeration design and installation
Ownership
Private company owned by its two founding engineers
Company scale
About S$35 million revenue in 2001
Employees
180
Geography
Singapore, with projects in Johor
Reporting to
Senior Project Manager
Team
Two technicians and subcontracted installers per project
Financial scope
Projects of S$150,000 to S$1.2 million; no budget authority

Mandate

Design and commission cold rooms and refrigeration systems for supermarkets and central kitchens.

Outcomes

  • Designed and commissioned 22 cold rooms and blast freezers.
  • Rewrote the firm's condenser-sizing practice after a rooftop failure in 2000.
  • Commissioned the firm's first central-kitchen project in Johor.

Decisions in context

My first job after university was designing and commissioning cold rooms and blast freezers for supermarkets and central kitchens. I worked on 22 installations in under three years, mostly in Singapore and two in Johor. The project that shaped me went wrong. In 2000 a freezer room I had commissioned failed on a Sunday because its condensing unit, sized for a 32°C ambient temperature, sat in a rooftop corner where the air reached more than 40°C. The client lost its frozen stock and the firm paid for new equipment. Afterwards I rewrote our condenser-sizing practice to require a site measurement of the actual location, not the weather bureau's average. I also learnt how customers use the rooms we build: doors propped open, stock piled against evaporators, cleaning done with hoses. I left because I wanted to run the operation rather than equip it.

Reason for the move

Wanted to operate food production rather than design equipment for others.

What I am looking for next

I intend to stay at Rumbia for the next several years. The chiller and flood programme, the network-wide decision on smaller bakes and the 2027 post-investment review of the Senoko kitchen all need me, and I would rather finish them than hand them over half built. If I were to consider another executive role later, it would be as chief operating officer or chief executive of a larger regional food or consumer-services business, probably with revenue above S$1.5 billion and operations in at least three Southeast Asian countries, where physical networks, cold chains and a large frontline workforce sit at the centre of the plan rather than at its edge. I would look for an owner, family or institutional, that is willing to spend money in a good year on problems that will only show in a bad one, and a board that wants operating risk reported in the same detail as financial risk.

My nearer chapter is a board one: a single independent directorship outside food, taken with my board's consent, where I can learn the non-executive role properly before I am asked to lead a committee.