
Services
Japanese and Asian translation services
Native-language expertise. Subject-specific knowledge. Clear, natural translations tailored to your audience.
Translation by Native-Speaking Professionals
Work with native-speaking translators and subject specialists for Japanese, English and Asian-language projects. We match wording, terminology and tone to your intended readers. Your quote confirms the translation direction and the checking, proofreading and layout work included in your chosen package.
Legal, business, technical and official documents, certified or standard, delivered quickly, securely and reliably.
Translation Service Packages
Choose the level of review and layout work your content needs.
Internal use, large or urgent projects
Speed
Single-step process (Translation only)
Review scopeSelf-review
Highest cost savings
- Fastest delivery for urgent projects
- Basic formatting only
- Translator self-review only
Balanced choice
Business materials requiring professional accuracy
Quality
TEP (Translation + Check + Proofreading)
Review scopeCheck + proofreading
A balance of quality and efficiency
- Standard delivery
- Original layout preserved
- Included (check and proofreading for grammar and clarity)
Legal, marketing, or publication-level content
Premium
TEP + Layout adjustment
(Translation + Check + Proofreading + Layout adjustment)
Review scopeFull review + layout QA
Best for premium quality and precision
- Priority delivery with flexible scheduling
- Original layout fully refined and verified
- Included (full proofreading, consistency, terminology, and layout review)
Rates start from about US$0.05 per word (excluding tax), depending on language pair and tier. See the full rate table
Need a specific type of document translated? See our industry translation pages or all language services for more specific requirements.
What are translation services?
Translation services convert text from one language into another while preserving its meaning, tone and technical precision. Green Sun provides Japanese, English and Asian language translation through native-speaking linguists with subject expertise, checked in a 3-step QA process, from offices in Tokyo, Japan and Ho Chi Minh City, Vietnam.
At a glance
- Packages: Speed (translation only), Quality (translation, check and proofreading) and Premium (adds layout adjustment)
- Review scope: translator self-review (Speed), check and proofreading (Quality), and full review plus layout QA (Premium)
- Languages: Japanese and English into Vietnamese, Thai, Indonesian, Malay, Tagalog, Khmer, Lao, Burmese, Chinese, Korean, Hindi, Urdu, Tamil and Nepali
- Quality control: translation by a native expert, review by a second linguist, final QA with professional tools
- Quote: a reply within 30 minutes during business hours; quote timing depends on project scope
Why choose Green Sun
Strict Quality Control
Every project undergoes a 3-step review process, combining native-language experts and advanced QA tools to ensure high accuracy and faster turnaround.
Affordable Rates Trusted by Translation Agencies
We offer high-quality services at competitive prices and are the go-to outsourcing partner for many reputable translation companies.
Prompt Replies During Business Hours
We aim to reply within 30 minutes during business hours. Quote timing depends on project scope.
Specialized Expertise in Niche Fields
Our experienced team handles highly technical and legal documents with precision, delivering consistently accurate and industry-standard translations.
Translation Rate
Our Language Expertise
We provide professional translation and localization services from Japanese and English into major Asian languages, including Korean, Chinese, Thai, Vietnamese, and Indonesian. Each language is handled by native-speaking linguists with deep cultural and domain expertise, ensuring accuracy and natural communication across borders.
Industries we serve
Specialist translation for 12 industries. Select one to see what we translate and how we work.
Document Translation Process
Analysis & Preparation
• Receive and analyze source materials to define project goals, audience, and tone of voice.
• Assess content complexity, estimate timeline and resources, and prepare translation memories and glossaries for consistency.
Team Selection & Setup
• Assign qualified translators, editors, and QA specialists with relevant domain expertise.
• Set up CAT tools, share resources, and align terminology and style guides across the project team.
Translation (T)
• Professional translators deliver accurate, fluent translations that reflect the meaning, tone, and context of the source text.
• Utilize CAT tools to manage terminology, ensure consistency, and optimize efficiency.
Editing (E)
• Editors review the translation for grammar, style, and readability, comparing it with the source text.
• Ensure accuracy, coherence, and cultural appropriateness throughout the entire document.
Proofreading & Quality Assurance (P)
• Conduct final checks for consistency, formatting, and layout integrity.
• Verify terminology, encoding, punctuation, and localized content meet quality standards before delivery.
Delivery & Feedback
• Deliver the final translation in the requested format and collect client feedback.
• Use insights from feedback to continuously improve translation quality and workflow efficiency.
What our clients say
Feedback from translation and interpreting companies that outsource work to Green Sun.

Language support for global teams.
Green SunHuman expertise. Global understanding.
“We greatly appreciate their prompt support. I once sent a project request at 9:00 p.m. and still got a response and support from Green Sun right away.”
“We are grateful for their helpful, dedicated support and feel confident relying on them. They always respond courteously to our inquiries, even the difficult ones.”
“The managers are always helpful and respond very quickly. We are truly impressed by the quality of their written Japanese.”
“We strive to offer our customers timely and helpful assistance as part of our dedication to being responsive to their needs.”
Confidential documents,
handled with care
Legal, HR and technical documents often contain sensitive information. Green Sun can sign a non-disclosure agreement (NDA) and restrict access to the materials entrusted to us.
- NDA available. We can also use your company’s agreement template.
- Restricted access. Project materials are shared only with authorized personnel.
- Confidentiality commitments apply to everyone assigned to your project.
- Deletion after delivery can be arranged on request.

FAQ
Translation services: frequently asked questions
How are native translation and native-speaker review different?
Native translation means translating into the translator’s native language. Native-speaker review is a separate check of wording, tone and readability in the target language. The review steps included depend on your selected service package and quote.
Who will be translating my documents?
Native-speaking translators and subject specialists support Japanese, English and Asian-language projects. We confirm the target language, translator and review requirements when scoping your project.
What kinds of documents do you translate?
We translate a wide range of materials, including legal contracts, patents, business reports, technical manuals, marketing content, immigration documents, and more. Whether it’s a certified translation or internal communication, we tailor our service to your needs.
Do you offer languages other than Japanese?
Yes. In addition to Japanese, we provide professional translation services in Vietnamese, Thai, Indonesian, Malay, Tagalog, Chinese, Korean, Hindi, and several European languages. Each language pair is handled by native linguists for accuracy and cultural relevance.
How do you ensure translation quality?
Every project goes through a 3-step QA process: translation by a native expert → review by a second linguist → final QA check using professional tools. We also use translation memory, termbases, and style guides to ensure consistency and accuracy.
Can you handle technical or legal content?
Absolutely. Our team includes translators specializing in IP law, engineering, medicine, IT, finance, and regulatory documentation. We understand how critical precision is for such materials and follow strict terminology control.
How fast can I get a quote?
We aim to reply within 30 minutes during business hours. Quote timing depends on project scope.
Is my data safe with you?
Yes. We strictly adhere to non-disclosure agreements (NDAs) and use secure file handling systems. Your files are only accessed by authorized personnel and are stored in encrypted, access-controlled environments.
Can you handle multilingual projects in one go?
Yes, that’s one of our strengths. We offer multilingual project management, where you can submit one project covering several languages, and we keep formatting, terminology and delivery consistent across every version.
What is the difference between the Speed, Quality and Premium packages?
Speed is a single-step translation for internal, large or urgent projects. Quality adds a check and proofreading (TEP) and preserves the original layout. Premium adds full proofreading, consistency, terminology and layout review for legal, marketing or publication-level content.
What does TEP mean in translation?
TEP stands for Translation, Editing and Proofreading. A translator produces the translation, an editor compares it with the source for grammar, style and accuracy, and a proofreader performs the final consistency and quality checks.
How much does a translation cost?
The price depends on the language pair, the package and the volume. The translation rate table on this page shows our rates, and you can request a quote: we aim to reply within 30 minutes during business hours; quote timing depends on project scope.
Do you provide certified translation?
We handle both certified and standard translation, including immigration and official documents. Tell us the requirements of the receiving authority when you request a quote.
Which languages do you translate from and into?
We translate from Japanese and English into major Asian languages including Korean, Chinese, Thai, Vietnamese and Indonesian, as well as Malay, Tagalog, Khmer, Lao, Burmese, Hindi, Urdu, Tamil and Nepali. Each language is handled by native-speaking linguists.
Ready to get started with translation services?
Tell us the language pair, the content and the deadline. We will reply with a quote and a plan.













