ASTI is a Singapore-based M&E and hook-up contractor specialising in process utility and tool hook-up works — connecting process equipment to facility utilities such as specialty gases, process chemicals, ultrapure water, vacuum and exhaust. We deliver hook-up scopes end to end, to high-purity standards, often within live operating environments, across Singapore and Southeast Asia.
What process utility and tool hook-up involves
Hook-up is the critical link between a facility and the equipment that runs in it. Once a tool or process line is installed, it must be connected to a web of utilities — gases, chemicals, water, vacuum, exhaust, cooling and power — to exacting cleanliness and safety standards before it can operate. Done poorly, hook-up introduces contamination, leaks or downtime into a facility where any of those carry serious cost.
It is also among the most demanding work to execute, because it frequently takes place in occupied cleanrooms and live fabs, where contamination control, safety and minimal disruption to ongoing production are non-negotiable.
The systems we connect
ASTI delivers the full range of process utility and tool hook-up connections:
- Specialty gases — specialty process gas distribution, including toxic, corrosive and pyrophoric gases, delivered to ultra-high-purity standards
- Bulk and ultra-high-purity (UHP) gases — bulk gas supply and UHP delivery systems
- Process chemicals — chemical and slurry distribution systems
- Ultrapure and process water — UPW, DI water and process cooling water (PCW)
- Process vacuum and exhaust — process vacuum, acid, solvent/VOC, general and heat exhaust
- Utilities — compressed dry air (CDA), nitrogen, chilled water and process drains
- Electrical and power — tool power connections and supporting M&E
Built to high-purity standards
High-purity systems demand specialist execution — and specialty gas distribution most of all, where toxic, corrosive and pyrophoric gases leave no margin for error. ASTI’s hook-up work uses orbital welding for clean stainless-steel tubing, with controlled purging, pressure and helium leak testing, and verification against the moisture, particle and purity specifications each system requires. This discipline is what protects process integrity and safety once the tool comes online — and what distinguishes specialist hook-up from general mechanical installation.
ASTI’s approach: one contractor, end to end
ASTI’s advantage is integration. As a contractor that delivers cleanroom construction, M&E services and specialist hook-up under one roof, ASTI can take responsibility for the facility and its tool connections as a single scope — removing the interface and finger-pointing risk that arises when hook-up is split from the base build. From planning and routing through installation, testing and commissioning, the client has one accountable party.
Backed by Equans’ global experience
ASTI is part of Equans, a global leader in technical and energy services with more than 20 years’ experience delivering complex projects in the microelectronics and semiconductor sector worldwide — spanning design, engineering, installation and industrial utilities for semiconductor, pharmaceutical and data-centre facilities. This connects ASTI’s local hook-up expertise to a proven international track record in high-tech industrial projects, giving clients global engineering depth delivered by a team that knows the Singapore and Southeast Asia market.
Our hook-up capabilities
- Specialty gas systems: toxic, corrosive and pyrophoric specialty gas distribution to UHP standards
- Process utility hook-up: bulk and UHP gases, chemicals, UPW, process water, vacuum and exhaust
- Tool hook-up: connection, testing and commissioning of process equipment in cleanrooms and fabs
- High-purity execution: orbital welding, purging, pressure and helium leak testing, purity verification
- M&E and utilities: CDA, nitrogen, chilled water, drains, electrical and tool power
- Live-environment delivery: work executed safely within occupied cleanrooms and operating facilities
- Sectors served: semiconductor, pharmaceutical, biotechnology and high-tech manufacturing
- Track record: over 25 years delivering critical facilities across Singapore and Southeast Asia
Project references and examples are available on request, under NDA. Contact us to discuss your facility requirements and see relevant work.
Why this matters for facility owners
For semiconductor and pharmaceutical manufacturers, hook-up sits on the critical path to production — and often happens inside a facility that is already running. Choosing a contractor who can deliver hook-up to high-purity standards, safely within a live environment, and as part of an integrated scope with the base build, reduces contamination and downtime risk and protects the production schedule. With over 25 years of local experience and the global track record of Equans behind it, ASTI brings that specialist capability to facilities across the region.
ASTI delivers process utility and tool hook-up across Singapore and Southeast Asia, alongside semiconductor cleanroom construction and GMP pharmaceutical cleanroom construction. Contact us to discuss your facility requirements.
Frequently Asked Questions
What is process utility and tool hook-up?
Hook-up is the work of connecting installed process equipment to a facility’s utilities — specialty gases, chemicals, water, vacuum, exhaust, cooling and power — to the cleanliness and safety standards required before the equipment can operate. ASTI delivers this end to end, including testing and commissioning.
What systems does tool hook-up connect?
Tool hook-up typically connects specialty gases (including toxic, corrosive and pyrophoric gases), bulk and ultra-high-purity gases, process chemicals, ultrapure and process water, process vacuum and exhaust, compressed dry air, nitrogen, chilled water, drains and electrical power. ASTI delivers the full range to high-purity standards.
How are specialty gas and high-purity systems built and tested?
Specialty gas and high-purity systems use orbital welding for clean stainless-steel tubing, followed by controlled purging, pressure and helium leak testing, and verification against the required moisture, particle and purity specifications. With toxic, corrosive and pyrophoric gases, this rigour is essential for both process integrity and safety.
Can hook-up be done in a live or operating facility?
Yes. Much hook-up work takes place in occupied cleanrooms and operating fabs. ASTI executes it with strict contamination control, safety and coordination to minimise disruption to ongoing production.
Which sectors does ASTI provide hook-up services for?
ASTI provides process utility and tool hook-up for the semiconductor, pharmaceutical, biotechnology and high-tech manufacturing sectors across Singapore and Southeast Asia.
ASTI is a Singapore-based laboratory and M&E contractor specialising in the design, construction and commissioning of research, quality-control and biosafety laboratories. We deliver controlled, compliant and safe laboratory environments — engineered, built and handed over end to end by a single contractor. ASTI has delivered laboratories for pharmaceutical, biotechnology, research and high-tech clients across Singapore and Southeast Asia.
What laboratory construction demands
A laboratory is one of the most service-intensive environments to build. It combines specialised HVAC and airflow control, extensive gas, vacuum, water and electrical reticulation, fume and containment equipment, and durable, cleanable finishes — all coordinated around how people, samples and materials move safely through the space.
Get any of these wrong and the consequences are serious: failed containment, unsafe handling of hazardous agents, or a facility that cannot meet the standards its work requires. Building a compliant laboratory takes deep experience across architecture, M&E and the regulatory expectations of each lab type.
Laboratory types and classifications
ASTI designs and builds the full range of laboratory environments, each with its own technical and safety requirements:
- Research and R&D laboratories — flexible wet and dry labs for life sciences, chemistry and high-tech research.
- Quality-control and analytical laboratories — controlled environments supporting GLP and ISO/IEC 17025 quality systems.
- Biosafety and containment laboratories — facilities engineered to biosafety levels (BSL-1 to BSL-3), with directional airflow, HEPA-filtered exhaust, anterooms and pressure regimes for safe handling of biological agents.
- Cleanroom laboratories — labs requiring ISO 14644 cleanliness control, drawing on ASTI’s cleanroom design and build expertise.
ASTI’s approach: one contractor, end to end
ASTI’s advantage on laboratory projects is integration. Rather than splitting the build, the M&E services and the specialist lab fit-out across separate contractors — each with its own interfaces and finger-pointing risk — ASTI delivers the full scope in-house:
- Laboratory design and build — controlled environments engineered to the required lab type and classification, from concept and detailed engineering through to handover.
- Mechanical & electrical (M&E) services — HVAC, airflow and pressure control, HEPA filtration, chilled water and electrical systems engineered for safe, stable laboratory performance.
- Laboratory fit-out and utilities — fume cupboards, biosafety cabinets, casework and benching, and gas, vacuum and water reticulation.
This single-accountability model removes the coordination gaps that cause delays and safety risk, and gives the client one responsible party from empty shell to commissioned handover.
Built for safety, containment and compliance
Laboratories must be safe and compliant, not just functional. ASTI designs and constructs facilities to support the relevant safety and regulatory requirements — including Singapore’s biosafety regime, Good Laboratory Practice (GLP) and ISO/IEC 17025 — and engineers containment, airflow and finishes so the laboratory performs reliably and is ready for certification and audit from handover.
Our laboratory capabilities
- Laboratory types: research and R&D, quality-control and analytical, biosafety and containment, and cleanroom laboratories
- Biosafety: facilities engineered to BSL-1 to BSL-3 containment requirements
- Design and build: facility planning, detailed engineering, construction, fit-out, testing and commissioning
- M&E services: HVAC, airflow and pressure control, HEPA filtration, chilled water and electrical systems
- Lab fit-out and utilities: fume cupboards, biosafety cabinets, casework, benching and gas, vacuum and water reticulation
- Compliance: built to support biosafety, GLP, ISO/IEC 17025 and audit requirements
- Sectors served: pharmaceutical, biotechnology, life sciences, research institutes and high-tech
- Track record: over 25 years delivering critical facilities across Singapore and Southeast Asia
Project references and examples are available on request, under NDA. Contact us to discuss your facility requirements and see relevant work.
Why this matters for facility owners
Research institutes, pharmaceutical and biotech companies across Singapore and Southeast Asia need laboratories that are safe, compliant and ready to operate on tight timelines. Choosing a contractor who can design, build and commission the laboratory as one integrated scope — with in-house M&E expertise and a clear understanding of biosafety and compliance — reduces risk, shortens the programme and gets the facility into use sooner. With over 25 years of experience delivering critical facilities, ASTI brings that combined capability to laboratory projects in the region.
ASTI designs and builds laboratories across Singapore and Southeast Asia. We also specialise in semiconductor cleanroom construction and GMP pharmaceutical cleanroom construction. Contact us to discuss your facility requirements.
Frequently Asked Questions
What does laboratory design and construction involve?
Laboratory design and construction involves planning and building a facility around specialised HVAC and airflow control, gas, vacuum, water and electrical reticulation, fume and containment equipment, and durable cleanable finishes — coordinated for the safe movement of people, samples and materials. ASTI delivers all of this end to end, from concept design through to testing and commissioning.
What are biosafety levels (BSL) in laboratory design?
Biosafety levels (BSL-1 to BSL-4) define the containment required for handling biological agents of increasing risk. Higher levels require directional airflow, HEPA-filtered exhaust, anterooms and controlled pressure regimes. ASTI designs and builds laboratories to BSL-1 to BSL-3 containment requirements.
Can one contractor design, build and commission a laboratory?
Yes. ASTI delivers the laboratory build, its M&E services and the specialist fit-out and utilities in-house, under a single contractor. This single-accountability model removes the interface and safety risks that arise when these scopes are split across separate firms.
What standards do laboratories need to comply with?
Depending on their work, laboratories must meet biosafety regulations, Good Laboratory Practice (GLP) and quality standards such as ISO/IEC 17025. ASTI designs and constructs facilities to support these requirements and to be ready for certification and audit at handover.
Which sectors does ASTI build laboratories for?
ASTI builds laboratories for the pharmaceutical, biotechnology, life-sciences, research-institute and high-tech sectors across Singapore and Southeast Asia.
ASTI is a Singapore-based cleanroom and M&E contractor specialising in the design, construction and commissioning of GMP-compliant pharmaceutical and biotechnology cleanrooms. We deliver controlled environments built to meet regulatory certification and audit requirements — engineered, built and validated end to end by a single contractor. ASTI has delivered GMP cleanrooms for pharmaceutical and biotech manufacturers across Singapore and Southeast Asia.
What GMP cleanroom construction demands
A pharmaceutical cleanroom must do more than meet a cleanliness class — it must satisfy Good Manufacturing Practice (GMP) and stand up to regulatory inspection and audit. That means precise contamination control, validated environmental performance, and complete documentation that traces the facility from design through to qualification.
Building to GMP requires deep coordination between architecture, HVAC, utilities and process flow: pressure cascades, HEPA filtration, controlled personnel and material movement, and cleanable finishes all have to work together. Any gap can mean a failed inspection, costly rework, or delayed product release.
GMP cleanroom grades and standards
Pharmaceutical cleanrooms are classified by GMP grade — Grade A to Grade D under EU GMP Annex 1 — which correspond to ISO 14644 cleanliness classes for particle control. Grade A covers the most critical zones, such as aseptic filling, while Grade D supports less critical support areas. ASTI designs and builds across the full range, aligning each space to its process requirements and to the standards relevant to the client’s markets, including Singapore’s Health Sciences Authority (HSA) and international audit expectations.
ASTI’s approach: one contractor, end to end
ASTI’s advantage on pharmaceutical projects is integration. Rather than splitting the cleanroom, the M&E services and the process utilities across separate contractors — each with its own interfaces and finger-pointing risk — ASTI delivers the full scope in-house:
- Cleanroom design and build — GMP-compliant controlled environments engineered to the required grade, from concept and detailed engineering through to handover.
- Mechanical & electrical (M&E) services — HVAC, HEPA filtration, pressure cascades, chilled water and electrical systems engineered for stable, validated cleanroom performance.
- Process utilities and hook-up — clean and process gas, water systems and equipment connections that support pharmaceutical and biotech production.
This single-accountability model removes the coordination gaps that cause delays and compliance risk, and gives the client one responsible party from empty shell to qualified handover.
Built for qualification, validation and audit
GMP facilities have to be proven, not just built. ASTI designs and constructs cleanrooms to support the full commissioning and qualification process — Design, Installation, Operational and Performance Qualification (DQ, IQ, OQ, PQ) — and delivers the documentation regulators and auditors expect. The result is a facility that is ready for certification and inspection from handover, not one that needs remediation to pass.
Our pharmaceutical cleanroom capabilities
- GMP grades: Grade A to Grade D (EU GMP Annex 1), aligned to ISO 14644 cleanliness classes
- Design and build: facility planning, detailed engineering, construction, fit-out, commissioning and qualification support
- M&E services: HVAC, HEPA filtration, pressure cascades, chilled water and electrical systems for validated performance
- Process utilities: clean and process gas, water systems and equipment hook-up
- Compliance: built for HSA, GMP and international audit and certification requirements
- Sectors served: pharmaceutical, biotechnology, biologics, sterile manufacturing and medical devices
- Track record: over 25 years delivering critical facilities across Singapore and Southeast Asia
Project references and examples are available on request, under NDA. Contact us to discuss your facility requirements and see relevant work.
Why this matters for facility owners
Pharmaceutical and biotech manufacturers in Singapore and across Southeast Asia operate under intense regulatory scrutiny and tight project timelines. Choosing a contractor who can design, build and commission a GMP cleanroom as one integrated scope — with in-house M&E expertise and a clear path through qualification and validation — reduces compliance risk, shortens the programme and protects time to product release. With over 25 years of experience and cleanrooms delivered from ISO Class 1 to ISO Class 100,000, ASTI brings that combined capability to pharmaceutical projects in the region.
ASTI designs and builds GMP-compliant pharmaceutical and biotechnology cleanrooms across Singapore and Southeast Asia. We also specialise in semiconductor cleanroom construction for wafer-fabrication facilities. Contact us to discuss your facility requirements.
Frequently Asked Questions
What is a GMP cleanroom?
A GMP cleanroom is a controlled environment built to Good Manufacturing Practice standards for pharmaceutical, biotech or medical-device production. Beyond meeting a cleanliness class, it must deliver validated environmental performance and full documentation so the facility can pass regulatory inspection and audit.
What GMP grades do pharmaceutical cleanrooms use?
Pharmaceutical cleanrooms are graded A to D under EU GMP Annex 1, corresponding to ISO 14644 cleanliness classes. Grade A covers the most critical aseptic zones; Grade D supports less critical areas. ASTI designs and builds across the full range, matched to each process step.
Can one contractor design, build and validate a GMP cleanroom?
Yes. ASTI delivers the cleanroom, its M&E services and process utilities in-house, under a single contractor, and builds to support the full commissioning and qualification process (DQ, IQ, OQ, PQ). This single-accountability model removes the interface and compliance risks of splitting the work across separate firms.
How does ASTI ensure a cleanroom passes regulatory audit?
ASTI designs and constructs to GMP and ISO 14644 requirements, engineers stable validated performance into the HVAC and utilities, and delivers the documentation regulators and auditors expect — so the facility is ready for certification and inspection at handover.
Which sectors does ASTI build GMP cleanrooms for?
ASTI builds GMP-compliant cleanrooms for the pharmaceutical, biotechnology, biologics, sterile-manufacturing and medical-device sectors across Singapore and Southeast Asia.
ASTI is a Singapore-based cleanroom and M&E contractor specialising in the design, construction and commissioning of semiconductor cleanrooms. We deliver controlled environments from ISO Class 1 to ISO Class 100,000 — engineered, built and validated end to end by a single contractor. ASTI has delivered semiconductor cleanrooms for global wafer-fabrication manufacturers across Singapore and Southeast Asia.
What semiconductor cleanroom construction demands
A semiconductor cleanroom is one of the most demanding controlled environments to build. It requires contamination control to a strict ISO class, precise HVAC and airflow engineering, and tight integration with the process equipment and utilities it serves — all delivered on time-sensitive programmes where delays carry significant cost.
The guiding principle is simple: build a room that is clean from the outset, rather than trying to clean it after construction. Achieving that takes disciplined planning, phased construction and deep experience with the interdependent systems that keep a fab running.
ASTI’s approach: one contractor, end to end
ASTI’s advantage on semiconductor projects is integration. Rather than splitting the cleanroom and its supporting services across separate contractors — each with its own interfaces and finger-pointing risk — ASTI delivers the full scope in-house:
- Cleanroom design and build — controlled environments engineered to the required ISO class, from concept and detailed engineering through to testing, commissioning and validation.
- Mechanical & electrical (M&E) services — HVAC, chilled water, electrical and process-utility systems engineered for cleanroom performance and energy efficiency.
- Supporting sub-fab and hook-up works — the gas, chemical, ultrapure-water and exhaust systems beneath and around the cleanroom that tie production equipment into the facility.
This single-accountability model removes the coordination gaps that typically cause delays on fast-paced fab projects, and is what lets ASTI hold responsibility for the cleanroom from empty shell to qualified handover.
Phasing for contamination control
Meticulous planning and phasing are central to clean delivery. ASTI segregates construction into distinct stages — each with its own protocols and controls — so contamination is minimised as the build progresses and the environment is clean at handover, not cleaned afterward. This disciplined, phased approach is what makes demanding ISO classes achievable on tight semiconductor timelines.
Our semiconductor cleanroom capabilities
- Cleanroom classes: ISO Class 1 to ISO Class 100,000, designed to the requirements of each process step
- Design and build: facility planning, detailed engineering, construction, fit-out, testing, commissioning and validation
- M&E services: HVAC, chilled water, electrical and process-utility systems engineered for cleanroom performance
- Supporting systems: gas and chemical distribution, ultrapure water, exhausts and equipment hook-up
- Full project lifecycle: from concept design to turnkey delivery and ongoing maintenance
- Sectors served: semiconductor, pharmaceutical, biotechnology and aerospace
- Track record: over 25 years delivering critical facilities across Singapore and Southeast Asia
Project references and examples are available on request, under NDA. Contact us to discuss your facility requirements and see relevant work.
Why this matters for facility owners
Semiconductor manufacturers in Singapore and across Southeast Asia are expanding capacity under intense time pressure. Choosing a contractor who can design, build and commission the cleanroom as one integrated scope — with in-house M&E and contamination-control expertise — reduces interface risk, shortens the programme and protects the production schedule. With over 25 years of experience and cleanrooms delivered from ISO Class 1 to ISO Class 100,000, ASTI brings that combined capability to semiconductor projects in the region.
ASTI designs and builds semiconductor cleanrooms across Singapore and Southeast Asia. Contact us to discuss your facility requirements.
Frequently Asked Questions
What is involved in semiconductor cleanroom construction?
Semiconductor cleanroom construction involves designing and building a controlled environment to a strict ISO class, with precise HVAC and airflow, integrated M&E and process utilities, and phased contamination control throughout the build. ASTI delivers all of this end to end, from concept design through to testing, commissioning and validation.
What ISO cleanroom class do semiconductor fabs need?
Semiconductor fabrication typically requires the strictest cleanroom classes, often ISO Class 1 to ISO Class 5 (Class 1 to Class 100), depending on the process step. ASTI designs and builds cleanrooms across the full range, from ISO Class 1 to ISO Class 100,000.
Can one contractor design, build and commission a semiconductor cleanroom?
Yes. ASTI delivers the cleanroom, its M&E services and the supporting sub-fab and hook-up works in-house, under a single contractor. This single-accountability model removes the coordination gaps and interface risks that arise when these scopes are split across separate firms.
How does ASTI control contamination during construction?
ASTI segregates the build into distinct, phased stages, each with its own contamination-control protocols, so the environment is built clean from the outset rather than cleaned afterward. This phased approach is essential on time-sensitive semiconductor projects.
Which sectors does ASTI build cleanrooms for?
ASTI builds cleanrooms and critical facilities for the semiconductor, pharmaceutical, biotechnology and aerospace sectors across Singapore and Southeast Asia.
ASTI in the press
ASTI’s cleanroom expertise has been featured in Cleanroom Technology, where our management team discusses semiconductor cleanroom and sub-fab construction:
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