There is one type of opportunity you will never miss on a tender notice, because you simply will not receive the invitation — works for which you are not on the list, or are on the list but in an insufficient group. For small and medium-sized contractors, this is more fundamental than missing a tender.
The Development Bureau maintains two approved lists for public works, which are different in nature: the Approved List of Contractors for Public Works covers 5 major building and civil engineering categories, while the Approved List of Suppliers and Specialist Contractors for Public Works covers 44 specialist works categories. The grading systems of the two lists are also different, and confusing the two is a common misunderstanding.
This article sets out the actual structure of the two lists, the contract value ceilings for each group, and the rules on suspension of tendering eligibility. All figures are quoted from the Development Bureau's public pages, as at July 2026.
Two Lists, Two Sets of Logic
Companies on the Approved List of Contractors for Public Works are permitted to undertake any one or more of the 5 major categories: Building, Port Works, Roads and Drainage, Site Formation, and Waterworks. Grading has only one dimension — group (Group A, B, C), divided by contract value.
The Approved List of Suppliers and Specialist Contractors for Public Works covers 44 specialist works categories, and grading has three dimensions: category, class, and group. Class (I to V) generally distinguishes technical scope, while group (I to III) distinguishes contract value ceilings. The same company may obtain a particular group under a particular class in a particular category.
One rule common to both lists: a company on a list may only tender for contracts in the works categories and groups for which it has approved qualification. So qualification is not simply a matter of being on the list, but of which category and which group you are in.
| Approved Contractors Register | Suppliers and Specialist Contractors Register | |
|---|---|---|
| Number of Categories | 5 Major Building and Civil Engineering Categories | 44 Specialist Engineering Categories |
| Classification Dimensions | Group (A / B / C) | Category + Level (I–V) + Group (I–III) |
| Enquiry Hotline | 3509 8367 | 3509 8366 |
Qualification is not about being on the register, but about which category and group you are in.
Contractor List: Value Ceilings of the Three Groups
The group definitions are straightforward and uniform across the entire list: Group A covers contracts not exceeding HK$150 million; Group B covers those not exceeding HK$400 million; Group C covers those exceeding HK$400 million.
The practical use of these figures is to work backwards into business planning. If you remain in Group A for the long term, then every project exceeding HK$150 million that appears in public information is merely market intelligence rather than an opportunity for you. To be able to bid successfully, you must first accumulate suitable project records before applying for upgrading—and accumulation takes time; it cannot begin only after receiving a particular tender notice.
The list also carries a "probationary period" marking, indicating that the contractor's qualification within the listed works category is probationary in nature. When reviewing competitors' information, a probationary period is a meaningful signal: it usually indicates that the company has only recently been approved in that category, rather than being a long-established operator.
The group ceilings also explain a phenomenon commonly seen in public information: large projects are often split into several contracts for award. Splitting has engineering management justifications, but a side effect is that the value of some lots is pushed down into Group B or even Group A range, enabling more contractors to qualify to bid. So when a large project appears with several similar reference numbers, it is worth checking the value of each one—one or two of them may fall precisely within your group.
Conversely, if the projects you have in mind consistently all exceed your group, that is not a search technique problem but a qualification problem, to be resolved through upgrading rather than filtering.
| Group | Contract Value Eligible for Bidding |
|---|---|
| Group A | Not exceeding HK$150 million |
| Group B | Not exceeding HK$400 million |
| Group C | Exceeding HK$400 million |
Specialist contractors: each category has its own set of limits
This is the most easily misunderstood part. The group limits for specialist contractors are not uniform, but are set individually for each works category. The following are the actual figures on the Development Bureau's public page, and the differences are significant.
In other words, "Group I" represents completely different amounts in different categories. The Group I limit for electrical installations is $4.6 million, while the Group I limit for mechanical installations is only $1.8 million; and for air-conditioning installations, Group I already reaches $9.2 million. Comparing group figures across categories is meaningless.
Also note the "no value limit" setting. The highest group in several categories is directly stated as "contracts/subcontracts with no value limit", rather than setting a maximum figure—for example, Air-conditioning Installations Group II, Fire Service Installations Group II, Site Investigation Works Group II, Land Piling Group II, Mechanical Installations Group II, Plumbing Installations Group II, and Electrical Installations Group III.
| Works category | Group I limit | Higher Group |
|---|---|---|
| Air-conditioning Installation | HK$9.2 million | Group II: No Value Limit |
| Electrical Installation | HK$4.6 million | Group II HK$11.4 million; Group III No Value Limit |
| Fire services installation | HK$4.6 million | Group II: No Value Limit |
| Plumbing Installation | HK$4.6 million | Group II: No Value Limit |
| Land Piling | HK$5.5 million | Group II: No Value Limit |
| Landscaping Works | $3.8 million | Group II: No Value Limit |
| Site Investigation Works | $3.7 million | Group II: No Value Limit |
| Mechanical Plant | $1.8 million | Group II: No Value Limit |
Groups are not a higher tier, but a different scope
Groups concern value, while levels concern technical scope — this runs counter to intuition, because "Level V" sounds higher than "Level II", but in fact it is simply a different type of work.
Take "specialised processes for road and bridge structures" as an example: Level II is waterproofing of concrete surfaces, Level III is resin injection for repairing concrete cracks, Level IV is non-destructive welding testing, and Level V is hot-dip galvanising. These are four different techniques with no ranking of superiority. (Level I was abolished on 17 March 2023.)
Similarly, for "supply and installation of bearings for road and bridge structures", Level I is mechanical bearings and Level II is rubber bearings; for "prestressed concrete works for road and bridge structures", Level I is supply and installation of prestressing systems and Level II is supply of prestressed concrete components; for "landscaping works", Level I is general landscaping works and Level II is hydroseeding. Therefore, when applying, the question is not "how many levels can I be upgraded to", but "which level does the process I carry out fall under".
One exception is worth remembering: the group for "all-inclusive interior design and renovation works" is not based on amount but on the number of contracts — Group I may be awarded one contract of a skills-test nature, while only Group II may be awarded more than one. This is a rare design in the register, effectively a trial mechanism.
- Group = amount ceiling (or number of contracts, for individual categories)
- Level = technical scope, with no ranking of superiority
- Of the 44 categories, only 3 accept "supplier" status; all the rest require "specialist contractor"
- Before applying, first confirm which level your work falls under, then consider the group
Supplier and specialist contractor: of the 44 categories, only 3 accept the former
The register's title reads "material suppliers and specialist contractors", which easily gives the impression that the two statuses are evenly distributed. In fact, among the 44 works categories, only three expressly accept "suppliers": prestressed concrete works for road and bridge structures; supply of asphalt paving materials and construction of special asphalt pavements; and transparent panels for road noise barriers. And "transparent panels for road noise barriers" is the only category that accepts suppliers but not specialist contractors.
The remaining 41 categories all require "specialist contractor" status. For a pure trading company, the implication is direct: if your business model is supply without construction, public works is not open to you in the vast majority of categories. The viable route is to become part of the supply chain of a main contractor or specialist contractor, rather than bidding directly.
Note that the two categories accepting both suppliers and specialist contractors — prestressed concrete works for road and bridge structures, and supply of asphalt paving materials and construction of special asphalt pavements — are both "materials + construction" in nature. This reflects a principle: the government accepts pure supplier status only where the materials themselves form the main subject of the contract; in all other cases, construction capability is required.
This also explains why we see large numbers of suppliers in award records (for example, pharmaceuticals and medical equipment), yet the vast majority belong to procurement by bodies such as the Hospital Authority, not public works by the works departments. The qualification systems of the two are entirely separate.
Suspension of tender eligibility: what the asterisk actually means
Both registers list companies currently suspended from tender eligibility, marked with an asterisk. The Development Bureau's public page defines the asterisk quite specifically: tender eligibility is suspended due to serious accidents, poor site safety records, serious or suspected serious poor performance, or serious incidents, and the suspension period will only end after the contractor first meets the relevant requirements for restoration of tender eligibility.
That last half-sentence is the key point. The suspension period does not simply end automatically once enough time has passed; the restoration requirements must first be met. So the risk represented by an asterisk is more substantial than a mere "suspension for X months".
For tender coordination, this has two uses. For one's own side: safety records directly affect tender eligibility, not just insurance costs. When researching competitors or selecting subcontractors: the asterisk is a publicly checkable signal, worth checking the register once before forming a team.
The suspension period does not end automatically—the requirements for restoration of tender eligibility must first be met.
Application and upgrading: where to submit, what to submit
Applications for inclusion in the register, confirmation of eligibility, or upgrading of eligibility are all made to the Development Bureau at Government Headquarters (15/F, West Wing, Government Headquarters, 2 Tim Mei Avenue, Tamar, Hong Kong), and must specify the engineering category intended for inclusion. Each register has its own application form, the current version being the May 2026 edition (available in English only).
The rules and requirements are mainly set out in the Contractor Management Handbook (available in English only, currently Rev 28, October 2025), and Works Bureau Technical Circular No. 13/2001 and its Amendment A (on certification of quality management systems for public works consultancy firms and contractors managed by works departments). In addition, the Development Bureau provides a model integrity management policy, integrity training courses, and the Construction Site Safety Handbook.
For Group C (confirmed level) applications, there is a separate "Non-local Works Experience Information Form". The Development Bureau has also published an infographic on "Latest Facilitation Measures for Direct Admission to the Approved Register", the so-called fast track route—if you are considering applying, this page is worth reviewing first, as it may change the order of your application.
There is one more consequence to be aware of: once a contractor is included in either or both registers, the Development Bureau may disclose its information to relevant government departments or the Housing Authority for tender evaluation, regulatory action, or other related work, including performance records kept by the Development Bureau or any government department, and records of regulatory action imposed. Performance records circulate within the government.
- Submit application to the Development Bureau Professional Services Group, specifying the works category
- Application Form May 2026 Edition; rules see Contractor Management Handbook Rev 28
- Quality management system certification requirements are set out in Works Bureau Technical Circular 13/2001 and 13/2001A
- Group C (Confirmed Status) must complete a separate Non-local Works Experience Information Form
- After inclusion in the register, performance records may be shared between government departments and the Housing Authority
How the list connects to the invitations you actually receive
Your standing on the list determines not only what you "can" bid for, but also what you "receive". Selective tendering works like this: the notice is published in the Gazette and on the internet, and invitation letters are sent to companies on the approved list. So in this type of tender, the list is the notification list.
But one exception to remember: for procurements covered by the WTO Government Procurement Agreement, companies not on the list will also be considered unless circumstances are exceptional. This means competition for large-scale works may be broader than the list, rather than purely competition within the list.
For contracts with an estimated value exceeding the specified amount, a notice is usually published in the Government Gazette inviting contractors on the list to bid; for engineering contracts below the specified amount, a tender notice may only be published on the government website. After receiving tenders, the Development Bureau will check whether the contractors meet the tender qualification requirements—that is, qualification checking takes place after tender receipt. Bidding without meeting the qualifications means the tender submission is wasted.
- Selective Tendering: Gazette notice + invitation letters to listed companies
- WTO GPA-covered procurement: may be considered even if not on the list
- Below specified amount: may only be announced on departmental webpage
- Eligibility checked only after bid closing—ineligible bids are wasted effort
Beyond the lists, departments have their own lists
The two Development Bureau lists are not exhaustive. Some works departments maintain their own lists, which may not be published in the same place: CEDD keeps the "Certified Reinforced Fill Products List" and the "Certified Permanent Prestressed Ground Anchors List"; EMSD has a departmental contractors list; WSD has a "Search Directory of Pipes and Fittings with Valid General Acceptance".
CEDD also maintains an "Approved Steel Reinforcement Prefabrication Yard List" and has an independent inspection team system. So if your business involves a specific material or process, you must check the corresponding department's list in addition to the Development Bureau lists—the two do not replace each other.
The two main lists are managed by the Development Bureau's Professional Services Section and are usually updated and/or reviewed weekly. The Development Bureau also expressly states that the list information is for general reference only, does not guarantee completeness or accuracy, and recommends users verify or seek independent advice. So for due diligence, the lists are a starting point, not the end point.
Turn the lists into a two-year plan
Putting the above rules together leads to one conclusion: list eligibility is an asset requiring advance planning, not a pre-bid formality. Group A ceiling is $150 million, Group B is $400 million, and upgrading requires suitable project records—meaning the projects you take on today determine what you can bid for in two years.
The practical approach is to review three things quarterly: your current category and group, the project scale you want to bid for, and the gap between the two. If the gap is project records, select contracts within your current group that can accumulate those records; if the gap is quality management system certification or safety records, that is management's work, not the bidding department's.
One last note as always: this site only consolidates publicly available notices; register qualifications and application requirements are governed solely by Development Bureau announcements, while tender documents and closing times are governed by official announcements and the electronic tendering system.
View public information directly
Data Source
- Development Bureau: Contractors (differences between the two registers, 5 major categories, 44 specialist categories)
- Development Bureau: Approved Contractors for Public Works Register (Group A/B/C value limits, probationary period, asterisk definition)
- DEVB: Explanation of Works Categories, Divisions and Groups (Amount Ceilings for Divisions and Groups of 44 Categories)
- DEVB: Application to Become a Public Works Contractor (Application Form, Handbook, Technical Circulars, Fast Track)
- DEVB: Public Works Contractors Register (Administration, Update Frequency, Disclaimer)
This article summarises public information for reference. Always verify eligibility, documents, addenda and closing times against the procuring authority's official notices, tender documents and addenda.
