Legal Information

Cookie Policy

Sigma Precioso – Unipessoal Lda  ·  sigma-precioso.com  ·  Version: August 2026  ·  Legal basis: GDPR (EU) 2016/679  ·  ePrivacy Directive 2002/58/EC  ·  Lei n.º 46/2012 (PT)

1. Data Controller

The controller responsible for the use of cookies on this website within the meaning of the General Data Protection Regulation (GDPR, EU 2016/679) is:

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2. What Are Cookies?

Cookies are small text files that a website places on your device (computer, tablet, or smartphone) when you visit it. They allow the website to recognise your browser on a return visit, remember your preferences, and provide a functional experience.

In addition to cookies, similar technologies may be used, including local storage, session storage, and pixel tags. This Policy applies equally to all such technologies. Under the ePrivacy Directive 2002/58/EC as amended by Directive 2009/136/EC — transposed into Portuguese law by Lei n.º 46/2012 — prior informed consent is required before placing any non-essential cookies or similar technologies on your device. Strictly necessary cookies are exempt from this consent requirement.

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3. Cookies We Use

We use strictly necessary cookies only. Analytics and marketing cookies are not currently deployed on this website. The table below lists the cookies that may be set.

Cookie name	Purpose	Duration	Provider
PHPSESSID	Standard PHP session identifier. Maintains server-side session state.	Session	First-party
wordpress_test_cookie	Tests whether the browser accepts cookies. Deleted immediately after the test.	Session (immediate)	First-party
wordpress_logged_in_*	Maintains the authenticated session for logged-in users. Applies to administrative users only; not set for public visitors. Deleted on logout.	Session	First-party
wp-settings-*	Stores interface preferences for logged-in WordPress users. Applies to administrative users only.	1 year	First-party

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4. Legal Basis for Processing

Strictly necessary cookies are placed on the basis of our legitimate interest (Art. 6(1)(f) GDPR) in operating a functional, secure website. Under Art. 5(3) of the ePrivacy Directive as transposed by Lei n.º 46/2012, strictly necessary cookies do not require prior consent.

Non-essential cookies (analytics, marketing) are not currently deployed. Should they be introduced in the future, they will be placed solely on the basis of your freely given, specific, informed, and unambiguous consent (Art. 6(1)(a) GDPR, in conjunction with Art. 5(3) of the ePrivacy Directive). You may withdraw consent at any time without affecting the lawfulness of processing prior to withdrawal.

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5. Third-Party Processors

sigma-precioso.com currently uses only strictly necessary first-party cookies served directly by this website’s server. No third-party cookies are in use. When third-party services are activated (for example, Google Analytics 4), this Policy will be updated to include the relevant data processing information.

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6. Managing and Withdrawing Your Consent

As sigma-precioso.com currently uses only strictly necessary cookies, no consent is required at this time. When non-essential cookies are introduced, you will be able to grant or withdraw your consent at any time:

1. Cookie Settings link — accessible via the “Cookie Settings” link in the footer of every page.
2. Browser settings — you can delete all existing cookies and block future cookies via your browser’s privacy or settings menu. Note that disabling strictly necessary cookies will impair core website functionality.
3. Browser-level privacy signals — where technically supported, Sigma Precioso will honour machine-readable opt-out signals (e.g. Global Privacy Control).

Withdrawing consent does not affect the lawfulness of any processing carried out before withdrawal.

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7. Your Rights Under GDPR

In relation to the personal data processed via cookies, you have the following rights under GDPR (Arts. 15–21) and Portuguese data protection law (Lei n.º 58/2019):

• Right of access — to obtain confirmation of whether we process your data and receive a copy (Art. 15)
• Right to rectification — to have inaccurate data corrected (Art. 16)
• Right to erasure — to request deletion of your data (Art. 17)
• Right to restriction — to limit how we process your data in certain circumstances (Art. 18)
• Right to data portability — to receive your data in a structured, machine-readable format (Art. 20)
• Right to object — to object to processing based on legitimate interest (Art. 21)
• Right to withdraw consent — at any time, without affecting prior lawful processing (Art. 7(3))

To exercise any of these rights, contact us at info@sigma-precioso.com. We will respond within 30 days. You also have the right to lodge a complaint with the competent supervisory authority:

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8. Updates to This Policy

Sigma Precioso reviews this Cookie Policy at least annually and whenever a material change to cookie usage occurs. The current version is always available at sigma-precioso.com/cookie-policy/. If new categories of cookies are introduced or the purpose of existing ones changes, this Policy will be updated and — where consent is required — a new consent request will be presented before the changed cookies are deployed. The version date in the header of this page indicates when it was last reviewed.