Is Cambodia Exempt from the U.S. Quartz Safeguard Tariff?

Key Takeaways

• Under U.S. Note 41(c)(iii) of the Presidential Proclamation Annex issued on July 31, 2026, Cambodia is explicitly listed among the developing countries excluded from the U.S. quartz surface products safeguard measure .
• The safeguard measure establishes tariff-rate quotas taking effect at 12:01 a.m. Eastern Time on August 15, 2026 .
• Cambodia’s exclusion is strictly conditional; it can be revoked if import volumes exceed a 3 percent individual share or contribute to a collective 9 percent share among small-share developing nations .
• For non-excluded countries, first-year safeguard duties are set at 25 percent within the tariff-rate quota and 50 percent above the quota .
• An exemption from the safeguard measure does not make imports "100% tariff-free," nor does it exempt shipments from standard U.S. customs duties, antidumping or countervailing duties (AD/CVD), or country-of-origin rules .

Introduction

Sourcing managers, countertop fabricators, and commercial distributors evaluating quartz surface products (QSP) face a rapidly shifting trade policy environment in the United States. Following the U.S. Presidential Proclamation issued on July 31, 2026, a new safeguard measure establishing tariff-rate quotas on covered quartz surface products was enacted . This regulatory shift has prompted immediate questions across international supply chains regarding which manufacturing countries face new duties and which qualify for specific trade exceptions.

For businesses sourcing from Southeast Asia, understanding Cambodia's exact regulatory status under the new safeguard policy is critical for landed cost projections, inventory planning, and long-term vendor compliance. Misinterpreting country exclusions can result in unexpected customs liabilities, delayed shipments, or flawed supply chain strategies.

This article provides a direct compliance analysis of Cambodia's current regulatory standing under the U.S. quartz safeguard proclamation. It outlines the specific legal grounds for Cambodia's exclusion, the strict volume thresholds that govern its conditional status, the steep duty rates applied to non-exempt origin countries, and the practical verification steps procurement teams must implement to ensure regulatory compliance.

Cambodia’s Exclusion Status Under U.S. Trade Policy

Cambodia is officially listed as an excluded developing country under the U.S. quartz safeguard policy, meaning covered quartz surface products from Cambodia are not subject to the newly established safeguard tariff-rate quotas at launch .

On July 31, 2026, the President of the United States issued an official Presidential Proclamation establishing a safeguard measure on imported quartz surface products . Within the proclamation's legal framework—specifically set forth in U.S. Note 41(c)(iii) of the Annex—Cambodia is designated among a select group of developing countries whose covered goods are excluded from both the safeguard tariff-rate quota limitations and the associated safeguard duty rates .

This safeguard policy is scheduled to take effect for covered goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. Eastern Time on August 15, 2026 . Under preferred compliance wording, the formal regulatory position is defined as follows: Under the U.S. Presidential Proclamation issued on July 31, 2026, Cambodia is listed among the developing countries excluded from the safeguard measure on covered quartz surface products, subject to the conditions of the proclamation .

For foreign trade zones, bonded warehouses, and direct ocean freight logistics, this means that covered quartz surface products originating from Cambodia and cleared through U.S. Customs on or after August 15, 2026, do not incur the primary safeguard duty rates, provided Cambodia maintains its conditional qualification status .

Regulatory Conditions and Limits of the Safeguard Exclusion

Cambodia's safeguard tariff exclusion is conditional rather than permanent, and it can be modified or terminated by U.S. authorities if specific trade volume thresholds are crossed .

The underlying legal architecture of U.S. safeguard measures relies on international trade mechanisms designed to protect domestic industries from sudden import surges. Consequently, the Presidential Proclamation incorporates specific legal mechanisms to adjust or revoke a developing country’s exemption if import patterns change .

Under U.S. Note 41(c)(iii), Cambodia's developing-country exclusion is subject to four primary revision conditions:

1. Individual Market Share Threshold: If Cambodia's share of total U.S. imports of covered quartz surface products exceeds 3 percent based on a recent representative period, its exclusion status may be removed .
2. Collective Developing Country Threshold: If combined imports from all listed developing countries that individually account for less than 3 percent collectively exceed 9 percent of total U.S. imports, the exclusion framework may be revised .
3. Developing Country Classification Status: If Cambodia is no longer designated or treated as a developing country for the purposes of the presidential proclamation, its exempt status ceases .
4. Authorized Policy Modifications: The exclusion remains subject to other authorized modifications or adjustments permitted under the executive proclamation .

For procurement teams and supply chain planners, these conditions mean that sourcing from Cambodia cannot be treated as a static, permanent duty posture. A rapid migration of global quartz manufacturing capacity into Cambodia could trigger the 3 percent individual share or the 9 percent aggregate share limits, prompting federal trade authorities to modify the exclusion list.

Safeguard Rates for Non-Excluded Countries vs. Excluded Nations

Countries not listed under the Note 41(c) developing-country exclusion face substantial financial penalties in the form of two-tiered safeguard duties starting August 15, 2026 .

To understand the commercial value of Cambodia's exclusion, buyers must analyze the tariff structure imposed on non-exempt supplying nations. For covered quartz surface products imported from non-excluded countries, the Presidential Proclamation outlines a two-tier tariff-rate quota system for its first year of implementation .

The first-year safeguard rates applicable from August 15, 2026, through August 14, 2027, include:

• In-Quota Duty Rate: A 25 percent tariff applied to covered imports within the specified quota volume .
• Above-Quota Duty Rate: A 50 percent tariff applied to covered imports exceeding the specified quota volume .

The table below contrasts the legal safeguard status and duty application across covered trade categories:

These safeguard tariffs represent substantial financial penalties for non-excluded origins . However, as specified in trade policy guidelines, these rates are distinct safeguard measures and do not represent a universal declaration that every quartz import from every non-excluded nation carries these exact overall duty costs .

Essential Compliance Guidance and Prohibited Sourcing Claims

A safeguard tariff exclusion does not equate to a total duty exemption, and commercial buyers must avoid false compliance assumptions regarding Cambodian quartz imports .

A common pitfall in international material procurement is confusing a specific regulatory exclusion (such as a safeguard tariff exception) with complete tax or duty immunity. Trade compliance regulations explicitly prohibit suppliers, distributors, and marketing channels from making misleading claims regarding the legal scope of the proclamation .

When evaluating commercial quartz surface products from Cambodia, buyers and suppliers must strictly avoid the following prohibited marketing and legal statements:

• Claiming products are "100% tariff-free" or "permanently tariff-free" .
• Claiming that "all U.S. duties are exempt" or "guaranteed duty-free" .
• Claiming that no U.S. tariff applies to every product line or that customs clearance is guaranteed .

The safeguard proclamation addresses only the specific tariff-rate quota established under the presidential order . It does not eliminate, modify, or replace other general customs tariffs, statutory import fees, existing antidumping (AD) duties, countervailing duties (CVD), or product-specific Harmonized Tariff Schedule (HTS) classification determinations .

Furthermore, U.S. Customs and Border Protection (CBP) strictly scrutinizes transshipment and country-of-origin documentation. Merely shipping quartz slabs through a Cambodian port or performing minimal finishing on foreign-made quartz blocks does not legally establish Cambodian country of origin. To legitimately qualify for the safeguard exclusion, quartz surface products must undergo substantial transformation in Cambodia according to established federal rules of origin.

To ensure compliance and verify landed cost calculations, procurement officers should request comprehensive documentation from suppliers, including:

• Official Certificates of Origin issued by authorized governmental bodies.
• Detailed manufacturing and transformation records verifying production steps in Cambodia.
• Raw material sourcing logs, batch production receipts, and mill certificates.
• Standard Customs Entry Summaries (CBP Form 7501) detailing HTS classifications and applicable duty lines.
• Written commercial guarantees from suppliers confirming compliance with U.S. trade laws.

Frequently Asked Questions

When does the U.S. quartz safeguard tariff take effect?

The U.S. quartz surface products safeguard measure officially takes effect for covered goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. Eastern Time on August 15, 2026 . Importers whose shipments clear customs prior to this timestamp are governed by pre-existing trade regulations, while shipments cleared on or after this time are evaluated under the safeguard framework .

Can Cambodia’s quartz safeguard exclusion be revoked in the future?

Yes, Cambodia’s safeguard exclusion can be modified or revoked by U.S. authorities if certain trade conditions are met . Under Note 41(c)(iii), the exclusion may be revised if Cambodia’s import share exceeds 3 percent of total U.S. imports of covered goods, if collective small-share developing country imports exceed 9 percent, or if Cambodia's designation as a developing country changes .

Does the safeguard exemption mean Cambodian quartz is completely duty-free?

No, the safeguard exclusion applies strictly to the specific safeguard tariff-rate quota and duty rates established under the July 31, 2026 proclamation . It does not grant complete duty-free status, nor does it override potential standard tariffs, antidumping duties, countervailing duties, or other customs fees that may apply to specific product categories or suppliers .

Conclusion

Under the U.S. Presidential Proclamation issued on July 31, 2026, Cambodia is officially listed under Note 41(c)(iii) as an excluded developing country from the quartz surface products safeguard measure taking effect on August 15, 2026 . While this provides a distinct trade positioning compared to non-excluded nations subject to 25 percent to 50 percent safeguard tariffs, the exemption is inherently conditional and tightly linked to market volume thresholds .

This exclusion applies specifically to legitimate Cambodian-origin products and does not eliminate standard customs compliance duties, potential AD/CVD liabilities, or general entry requirements . Procurement professionals and commercial buyers should not rely on simplified marketing claims that promise guaranteed duty-free imports .

As a practical next step, commercial buyers sourcing quartz surface products from Cambodia should conduct a formal trade audit. Importers must request detailed country-of-origin manufacturing records, monitor federal trade volume reports relative to the 3 percent import threshold, and consult qualified customs counsel to confirm that their full landed cost calculations account for all applicable U.S. trade regulations .