Planning that reaches further than next quarter.
Advisory work for companies in Japan who want to understand where they are going, what it will cost, and what stands in the way.
Get in touchWhat this work is for
Most companies can say what they plan to do this year. Fewer can say clearly what they intend to look like in five years, or what conditions would change that intention.
This practice works with leadership teams to build that clarity — not as a fixed forecast, but as a considered position with documented assumptions. The engagement closes when the company has something it can actually use.
Scope
Engagements are bounded and defined at the start. No open-ended retainer unless specifically agreed.
Deliverable
You receive a written output — a plan, a model, a register — that belongs to your company and can be maintained internally.
Approach
Work is done with your team, not handed down to them. The goal is understanding, not dependency.
Transparency
Fees are agreed in full before work begins. No escalations or revision billing for standard scope.
How this differs from general consulting
Fixed scope
You know what you are paying for before the engagement starts
Each engagement has a clear scope, a defined duration, and a fee stated upfront. The work is structured around a specific question your company needs to answer.
Written outputs
Something your team can read, refer to, and revise
Presentations decay quickly. The deliverable from each engagement is a written document or working model that retains its usefulness after the adviser has left.
Long horizon
Focused on decisions that matter beyond the current year
The questions addressed here — where the company is going, what it needs to commit to get there — are not suited to quarterly thinking. The work is calibrated accordingly.
How an engagement works
Initial conversation
We discuss what you need and whether the engagement type is a fit. No commitment required at this stage.
Scope and fee agreed
Scope, duration and the full fee are set out in writing before any work begins. You agree before we proceed.
Working sessions
Structured sessions with your leadership team or relevant staff, spread over the agreed engagement period.
Handover and review
The completed deliverable is handed to your team with a scheduled follow-up point to address questions after implementation.
A note on what to expect
Advisory work of this kind does not produce transformations in a fortnight. The planning documents and risk registers produced through these engagements are tools, and their value depends on how the company uses them over time.
What the engagement can do is give your leadership team a clearer, more considered basis for the decisions they are already making. That tends to produce better decisions, which compounds over the years that follow.
Engagements completed
47
since practice founding
Average duration
5 wks
per engagement
Repeat engagements
61%
of clients return for a second
Engagements available
Four structured formats, each addressing a distinct planning need.
8 weeks · ¥45,000 JPY
Long-Term Planning Engagement
A structured process covering a three- to five-year horizon — where demand is likely to move, what capability would be needed, and what must be committed and when.
View details
4 weeks · ¥39,000 JPY
Investment Case Preparation
Support preparing the case for a significant capital commitment — equipment, premises or systems — covering operational assumptions, alternatives and the conditions under which the case fails.
View details
6 weeks · ¥36,000 JPY
Sustainability Reporting Support
Practical support for companies asked to report on environmental and social matters — which frameworks apply, what data must be gathered, and how to report accurately without overstating.
View details4 weeks · ¥31,000 JPY
Risk Register Development
Construction of a working risk register covering operational, financial, supply, regulatory and key-person exposures — with each item assessed and a review schedule your team can follow independently.
Ready to talk about what your company needs?
There is no obligation in getting in touch. If what you have read here sounds like the kind of work your company could use, a brief conversation is a reasonable next step.
Reach out through the form, or contact us directly at info@mast-corelab.com.
- Initial conversation at no charge or commitment
- Scope and fee agreed in writing before work begins
- Deliverable handed to your team at close of engagement
- Follow-up review point included at no additional fee
Get in touch
Tell us briefly what you are working on. We will respond within two business days.
Company information
Legal name
Mast Core Lab
Address
1-23-4 Minatomirai, Nishi-ku
Yokohama 220-0012, Japan
Phone
+81 77-522-6349
Contact
info@mast-corelab.com
mast-corelab.com